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In other studies, the overall 5-year survival rate for those with early stage tumors has also been high 1 , The most prevalent histological type was squamous cell carcinoma, which was present in These findings are in agreement with the data published in the literature 7 , However, it remains controversial as to whether adenosquamous carcinoma is associated with a poor prognosis; although some authors advocate this hypothesis 33 , others argue that there is no supporting evidence Adenocarcinomas were not associated with a greater likelihood of tumor recurrence or a poorer prognosis in this study group, and only 1 patient experienced tumor recurrence.

HPV 18 was only associated with 1 case of adenocarcinoma and 2 cases of adenosquamous cell carcinoma. Furthermore, 20 cases of adenocarcinoma had to be excluded from the study because it was impossible to recover the corresponding paraffin blocks from the anatomopathology department, and it is possible that this exclusion may have affected the final results. In the present study, HPV type had no effect on the disease-free or overall survival rates and appeared to have no effect on the likelihood of tumor recurrence.

Numerous prognostic factors for cervical cancer have been documented in the literature, including clinical staging, invasion of the lymph nodes by tumor cells, parametrial involvement and invasion of the lymphovascular space 8 , 9 , 10 , Nonetheless, various investigators have attempted to clarify the precise role of HPV type in tumor progression 7 , 11 , 34 - In this study, the number of cases in which the tumor had invaded the pelvic lymph nodes was small 5 cases, 5. Of the 8 patients who experienced recurrences, pelvic lymphatic metastasis was present in only 1 patient.

Lymphatic metastasis is considered one of the most important prognostic factors and one that may affect survival. In turn, lymphatic metastasis can be affected by angiolymphatic invasion, an increase in tumor size or the depth of the stromal invasion, as shown in a study conducted by the Gynecology Oncology Group 10 , The small number of recurrences in the present study may also be attributable to the fact that there were few cases in which the lymph nodes were affected.

When a specific analysis was conducted on patients with early stage tumors IB and IIA who had undergone radical hysterectomy and pelvic lymphadenectomy, it was found that women with HPV 18 tended to have a poorer prognosis 7. In another study, the presence of HPV 18 in patients with early cervical carcinoma was associated with a significantly poorer prognosis compared to women infected with HPV 16, even after adjusting for other relevant factors, such as clinical stage, lymph node status and histological type Nevertheless, in a study conducted in Russian women is not observed in HPV type influences the prognosis of women, which had staged tumors classified as stage I and stage II However, in that study, no specific analysis was performed with respect to the type of treatment used, unlike the study mentioned previously In the study of van Muyden et al.

It has also been reported that tumors positive for HPV 16 are more likely to metastasize to the pelvic and parametrial lymph nodes compared to HPVnegative tumors 38 and that HPV 16 negatively affects the prognosis of patients who receive a radical hysterectomy with pelvic lymphadenectomy A study conducted by Pilch et al. However, in the present study, the presence of HPV 16, although more prevalent, had no effect on the characteristics mentioned above. Multiple-type HPV infection has been associated with a poorer response to radiotherapy and a poorer prognosis in patients with local advanced cervical cancer 31 , Nevertheless, for the patients evaluated in the present study, concomitant infection with HPV 16 and 18 had no detrimental effect on their prognosis.

In recent years, some studies have tried to establish HPV 18 as an indicator of an unfavorable clinical progression. In this respect, the present study sought to select a more homogenous group of women with early cervical cancer i. Furthermore, due to a similar situation in the anatomopathology department, it was impossible to recover the paraffin blocks of tumor samples for 68 patients who were eligible for the study, a fact that certainly contributed to the inadequate number of cases for the projected analysis. Furthermore, it was impossible to identify any factor analyzed that was significantly associated with disease recurrence, which may have been due to the limited size and homogeneity of the sample or the effect of other factors that are still under investigation.

However, the presence of HPV 16 or 18 was unrelated to the histological type and the degree of anaplasia, vascular invasion or lymph node involvement. Cancer of the cervix. Te Linde's Operative Gynecology. The causal link between human papillomavirus and invasive cervical cancer: a population-based case-control study in Colombia and Spain. Human Papillomavirus is a necessary cause of invasive cervical cancer wordwide.

The causal relation between human papillomavirus and cervical cancer. Determinants of increased risk for recurrence in patients undergoing radical hysterectomy for stage IB and II A carcinoma of the cervix. Gynecol Oncol. FIGO staging classifications and clinical practice guidelines in the management of gynecologic cancers. Assessment of pelvic lymph node micrometastatic disease in stages Ib and IIa of carcinoma of the uterine cervix. Role of human papillomavirus genotype in prognosis of early stage cervical cancer undergoing primary surgery. Sexually transmitted infection in a female population in rural north-east Brazil: prevalence, morbidity and risk factors.

Trop Med Int Health. Rev Saude Publica. Epidemiological aspects of human papillomavirus infection and cervical cancer in Brazil. The use of human papillomavirus typing in detection of cervical neoplasia in Recife Brazil. Clin Can Res. The presence of HPV DNA in cervical cancer: correlation with clinical-pathologic parameters and significance: 10 years experience at the department of obstetrics and gynecology of the Mainz University.

Gynecologic Oncology. Detection and typing of human papillomavirus in cervical carcinomas in Russian women. Does retreatment Human Papillomavirus HPV titer predict radiation response and survival outcomes in cancer cervix? Clin Cancer Res. The epidermal growth factor receptor pathway in relation to pelvic lymph node metastasis and survival in early-stage cervical cancer. Hum Pathol. Expression of PTEN and surviving in cervical cancer: promising biological markers for early diagnosis andprognostic evaluation.

Adenosquamous carcinoma of the cervix: prognosis in stage Ib. Obstet Gynecol. Detection of human papilloma virus DNA sequences. Cervicovaginal coinfections with human papillomavirus and chlamydia trachomatis. Diagn Microbiol Infect Dis. Histopathologic predictors of the behavior of surgically treated stage IB squamous cell carcinoma of the cervix. Prevalence of high-risk human papillomavirus types 16 and 18 in healthy women with cytologically negative pap smear in Iran.

Prevalence of specific types of human papillomavirus and cervical squamous intraepithelial lesions in consecutive, previously unscreened, West-African women over 35 years of age. Human papillomavirus DNA testing for cervical cancer screening in low-resource settings. Persistence of Human papillomavirus Infection as a predictor for recurrence in carcinoma of the cervix after radiotherapy. Prospective surgical-pathological study of disease-free interval on patients with stage IB Squamous cell carcinoma of the cervix: a Gynecology Oncology Group study.

Poor prognosis in patients with adenosquamous cell carcinoma of the cervix. Type of Human Papillomavirus is related to clinical features of cervical carcinoma. Human papillomavirus and prognosis of invasive cervical cancer: A population-based study. HPV-DNA, vascular space invasion, and their impact on the clinical outcome in early-stage cervical carcinomas. Human papillomavirus type and tobacco use as predictors of survival in early stage cervical carcinoma.

Prognostic importance of human papillomavirus type 16 DNA in cervical cancer. Rev Bras Ginecol Obstet.

Company History

Impact of multiple HPV infection on response to treatment and survival in patients receiving radical radiotherapy for cervical cancer. Zampronha RA and Freitas-Junior R contributed to the conception and design of the study, acquisition of the data, analysis and interpretation of data, initial draft of the manuscript and final approval of the submitted version.

Murta EF and Michelin MA contributed to the conception and design of the study, acquisition of the data, interpretation of the data, critical review of the manuscript and final approval of the submitted version. Barbaresco AA, Adad SJ and Oliveira AM contributed to the conception of the study, analysis and interpretation of the data and approval of the manuscript final version. Marconi Extent : 1 vol. Experimenting Room notebook, Aug. Photographic copies of laboratory notebooks, Shelfmark: MS. Scope and Content: Laboratory notebook dated and diary for , used for research notes dated Notebook of experiments, Sept.

Notebook on tests, Apr. Research notebook, Shelfmark: MS. Diary for , used for research notes, Shelfmark: MS. Scope and Content: Includes a few diary entries. Single sheet of notes on directional wireless telegraphy, c. Marconi Extent : 1 leaf. Miscellaneous personal papers and correspondence, Shelfmark: MS. Album of press cuttings on the bombardment of Alexandria, Shelfmark: MS. Marconi Extent : 1 album.

Marconi Extent : 1 album Scope and Content: A faded photograph of Kemp and an unidentified man is on the front cover. Mounted press cuttings relating to the 25th anniversary of the transatlantic signal, many with particular reference to Kemp, and other biographical press cuttings about Kemp Shelfmark: MS. Marconi Extent : 1 folder. Photographs relating to Kemp's Naval career, c. Photographs predominantly relating to wireless telegraphy, c. Albums of photographs, c. Wynne, discussing proposed experiments in Cardiff and the results of work in Italy, Shelfmark: MS. Tremain, another official at the General Post Office , discussing experimental work, copies and transcripts of letters from Marconi to Preece, draft speech of thanks to Preece and other GPO officials, c.

Jackson to Marconi, discussing arrangements for the Salisbury Plain experiments and referring to other experiments, telegram from Preece placing Kemp and Royal Engineers at Marconi's service for the experiments, letter from Sophia W. Henley about the use of her bungalow for accommodation by Marconi and Kemp, letter from Bernard Baden-Powell about the return of apparatus lent for the experiments, manuscript copy of report by H.

Kempe of the GPO on the experiments in September , with covering letter from the GPO, photocopies of two reports by Kempe on the same one a further copy of the above , with related letter from Preece to Lamb, News cutting with later typescript copy about proposed tests across the Bristol Channel, Shelfmark: MS. Marconi Extent : 2 boards Medium : Tapes cut and mounted on boards. Papers relating to experiments in Italy, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Comprises map showing area of the Gulf of Spezia where the experiments took place, with places of transmission and reception of signals marked [dated 30 Sept.

Exercise book containing Morse tapes of experimental transmissions from a tug in Alum Bay to the Needles Station, Dec. Scope and Content: The book was originally used as an exercise book for school compositions, and the tapes have been pasted over the top. Sketches of the Solent illustrating the experimental transmissions, showing the Needles Hotel, Alum Bay and the positions of the tug, Dec.

Marconi Extent : 2 maps on tracing paper. Rolled Morse tape of early wireless signals marked 'Telegram to [Mr. Marconi Extent : 1 rolled tape and envelope. Miscellaneous papers, Shelfmark: MS. Morse tapes of messages between St. Catherine's and Poole, Shelfmark: MS. Marconi Extent : 3 sheets. Marconi Medium : Tapes mounted on board Extent : 1 board. Marconi Extent : 1 tracing. Map of Rathlin Island showing possible positions for wireless stations, c. Marconi Extent : 1 tracing, framed. Marconi Extent : 1 folder Scope and Content: Copies of the messages sent, made in pencil presumably at the time of transmission.

Publications about the demonstration, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Comprises messages written in pencil on Naval Telegraphs and Signals message forms draft letter from Marconi to Major Carr, reporting on the results obtained cutting from the Electrical Review reporting on the installation.

Marconi Medium : Tapes cut and mounted on board Extent : 1 board. Correspondence and papers, Shelfmark: MS. Fleming to Jameson Davis [typescript copy] and Marconi [original], about experiments in Dover, including arrangements for the demonstration to the British Association meeting there, Aug. Papers relating to early experiments and demonstrations in the United States, Shelfmark: MS.

Secretary of War, including references to wireless telegraphy and experimental work under Marconi's supervision, telegram from Signal Officer Wildman conveying congratulations from Captain Squier on the previous day's work, telegram from Thomas Lipton about possible meeting with Marconi, note of message sent when establishing wireless communication from SS.

Ponce to shore during Naval Parade in New York Harbor, with news cutting and extract reporting the event, letter from H. Cuthbert Hall to Marconi, reporting on difficulties encountered in reporting the Americas Cup Yacht Race owing to interference from rival companies, letter from W. Bradfield reporting further on the coverage of the same race, with a chart showing the positions of Marconi and other stations, letter from H.

Correspondence concerning preparations for the transatlantic signal attempt, Oct. John's, Oct. Correspondence concerning the alleged infringement of the Anglo American Telegraph Company's rights to telegraphic communication in Newfoundland, Dec. Personal correspondence and letters of congratulation, Dec. Marconi Extent : 1 folder Scope and Content: Comprises draft letter from Marconi 'Markie' to 'Jumbo', giving his impressions of Newfoundland in light-hearted mood, and referring to experimental work; with on the last page a draft telegram to the company about not showing the system to the German Navy unless on a firm business proposal correspondence with E.

Morris about dining draft letter to Mr. Holloway thanking him for a photograph of the site of the experiments congratulatory telegram form the Canadian Minister of Finance on behalf of the Government correspondence with Sir Robert Bond, Governor of Newfoundland, including congratulations and invitations to dine letters from H.


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Burchill, Newfoundland Government Engineer, offering hospitality congratulatory telegram from Flood-Page congratulatory telegram from Alexander Graham Bell, also offering Marconi the use of his estate in Cape Breton for experimental work, with a draft telegram from Marconi to Graham Bell, in response to this or a later message letter of congratulations from the Borough of Helston.

Marconi's preliminary report to his company on his experiments in Newfoundland, Dec. News cuttings relating to the event, Shelfmark: MS. Photographs, Dec. Glass photographic negatives, Dec. Marconi Extent : 1 folder Scope and Content: Comprises correspondence and papers about arrangements for sending first transatlantic wireless messages, draft letter from Marconi to Lord Minto, Governor-General of Canada, about sending a wireless message from Minto to King Edward VII to mark the occasion, messages about permission to publish the message to the King, drafts, in Marconi's hand, of greetings messages to be sent by transatlantic wireless, cable messages sent to and from Glace Bay, including messages of congratulation and on company business, Miscellaneous tapes, and n.

Shelfmark: MS. Tapes of experimental messages, with related telegrams, Mar. Marconi Medium : tapes and telegrams mounted on sheets. Marconi Extent : 1 rolled paper tape in wooden box. Tapes referred to in a Statutory Declaration dated by G. Bullocke, Shelfmark: MS. Marconi Extent : 6 rolled paper tapes. Willis on wireless telegraphy, advertisement for programme on Wireless Telegraphy given by Inv. Sheets of sunrise and sunset curves, for use in experiments, c. Photographs of early equipment, c.

Papers concerning the formation of a wireless telegraph company, c. Marconi Extent : 1 box Scope and Content: Includes proposals for the formation of a company, c. Jameson Davis, J. Graham, William Preece and others, Hall's correspondence with Marconi, Shelfmark: MS. Correspondence concerning Hall's employment with and resignation from the company, Shelfmark: MS. Reports and correspondence on general activities, Shelfmark: MS.

Franklin, reports of orders for equipment, mostly from the company's departments and stations, correspondence from H. Jameson Davis, discussing various aspects of early experimental work, correspondence of E. Pochin, Engineer, on various technical matters and about the termination of his contract with the company, miscellaneous correspondence, predominantly from staff of the company to Marconi, Papers concerning other specific demonstrations, contracts and agreements, Shelfmark: MS.

Marconi Extent : 1 box Scope and Content: Comprises correspondence with the War Office about a demonstration, letter from Elliott Brothers enquiring about purchasing wireless apparatus, correspondence and cutting about wireless apparatus installed at Mitcham Lane Fire Station, Streatham, correspondence from W. Elliott and A. Raine reporting on a contract in Chile, , report by C. Rickard on a patent demonstration and possible contract in Malta, papers concerning the promotion of business in the U. Allen about equipment for the Haven, letter to Marconi from J. Letter book for the Haven Station, June Jan.

Letter book for the Haven Station, Jan. Letter book for the Haven Station, Nov. Letter book for the Haven Station, June Mar. Marconi Extent : 1 box Scope and Content: Includes correspondence and papers on finding a site for a long-distance station and the selection of Poldhu, technical matters including equipment for the station and construction of the masts, sending the transatlantic signal, a visit by Lord Kelvin, the visit of the Prince and Princess of Wales, other technical and administrative matters, Correspondents include Guglielmo Marconi S.

Flood-Page George S. Kemp J. Fleming H. Jameson Davis H. Cuthbert Hall R. Reports by W. Entwistle, Shelfmark: MS. Morse tapes of signals received at Poldhu Station, with miscellaneous news cuttings, Shelfmark: MS. Marconi Extent : 1 sheet. Photographs and postcards of the Poldhu Station, early 20th cent. Marconi Extent : 1 folder Scope and Content: Comprises tenders and associated plans for galvanized iron shed, plan of arrangement of h.

Fleming on selecting the site and equipping the station, reports by Marconi on his selection of the Cape Cod site and other aspects of a visit to America, proceedings of an ordinary meeting of the Anglo-American Telegraph Company, referring to wireless telegraphy and particularly a press visit to the Cape Cod Station, four photographs of the station showing buildings and the original ring of masts, each signed to Mr.

Kemp [from] G. Marconi, c. Marconi Extent : 1 box Scope and Content: Includes agreements with the Canadian Government relating to wireless telegraph services, , , list and map of Canadian stations, c. Mary's, Scilly, n. Marconi Extent : 1 box Scope and Content: Comprises correspondence papers about the identification of sites, construction and operation of the stations at Clifden and Letterfrack, including telegram sent by Marconi to the Dublin Evening Mail on the occasion of the opening of the Transatlantic Wireless Service, analysis of wireless traffic between Clifden and Glace Bay, lease of land for the station, letters from Kemp about work at Letterfrack, , news cuttings about the destruction of the station and Marconigram about activity of national troops and irregulars in the area, Photographs, Shelfmark: MS.

Map of the site of Clifden Station, showing the position of the aerial, c. Marconi Extent : 1 map. Marconi Extent : 1 map rolled. Marconi Extent : 1 roll of maps. Documents concerning various installations in Britain and overseas, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises copies of telegrams and original circular letter about successful communication between the Lizard and St. Catherine's, Isle of Wight, letter from Fleming about need for secrecy over Niton-Lizard work, correspondence with Hall and Gray about ships including the Kaiser Wilhelm signalling to the Lizard and other shore stations, list of apparatus sent to the Lizard, correspondence from Fleming about experimental simultaneous transmission between more than two stations including the Lizard and Poldhu, correspondence relating to wireless telegraphy in the Isles of Scilly, including the Admiralty Station, a proposed vessel-based station, and a temporary service between the Admiralty Station and Poldhu owing to the breaking down of the Post Office cable, correspondence about a proposed station at Goonhilly, draft letter from Marconi to Kemp about his departure for Crookhaven to continue long distance experiments between there and Poldhu, and giving instructions about work required at Poldhu, letters from P.

Woodward reporting on experimental work at Crookhaven, correspondence from Hall to Marconi about an agreement to receive and transmit messages from HMS Ophir at Crookhaven, correspondence about possible sites for stations at Ennismore and Cashel, letters and reports from E. Round about experimental work at Towyn, papers concerning a banquet to mark completion of the transatlantic station at Carnarvon, including a draft of Marconi's speech, letters to Marconi about the sale of Sir William Preece's house at Carnarvon, correspondence and reports on tests, booklets on the Carnarvon High-Power Wireless Station and the transatlantic receiving station at Towyn, c.

Marconi Extent : 1 box Scope and Content: Comprises descriptive leaflets about the service, its control centre at Radio House in London, the receiving centre at Brentwood and transmitting centre at Ongar, c. Photographs of stations and establishments, c.


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  7. Album of photographs of English Electric Marconi Argentina premises, c. Album of photographs of Stavanger Wireless Station, c. Album of photographs of premises and equipment of the Finnish Broadcasting Company, c. Marconi Extent : 1 folder Scope and Content: Articles, brochures and other papers. Correspondence and brochures about training schools, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes correspondence between Marconi and Austen Chamberlain, Postmaster General, about the question of the relations that should exist between the company and the Government, drafts and copies of letters from Marconi to the Italian Minister of Marine, concerning the Berlin Conference on Radiotelegraphy, letters from Cuthbert Hall to the Prime Minister, A.

    Balfour, concerning the value of wireless telegraphy for Imperial defence, Marconi Extent : 1 box Scope and Content: Includes papers relating to the Berlin Conference on Wireless Telegraphy, letter from the Postmaster General, Sydney Buxton to Marconi, commenting on the improvements and development of wireless telegraphy for international purposes, letter from Sydney Buxton to J. Henniker Heaton, cautioning against the use of wireless for confidential messages, Bills, acts and reports of committees relating to wireless telegraphy, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Includes handbooks for wireless telegraph operators working installations licensed by the Postmaster General, Petersburg and Service Regulations: Paris Revision, Correspondence with the Italian Government regarding agreements for wireless services, Shelfmark: MS. Correspondence about a possible wireless installation in Iceland, Shelfmark: MS.

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    Correspondence about the provision of a wireless installation in the Falkland Islands, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes correspondence about negotiations with Australian and New Zealand Governments papers of Captain Walker, the company's representative in Australia and New Zealand papers concerning the first wireless demonstration between Queenscliff, Victoria and Devonport, Tasmania, plans of the Marconi station at Port Lonsdale.

    Marconi Extent : 1 box Scope and Content: Comprises applications for employment in Australia and New Zealand, list of news articles in Australian papers, new cuttings from Australian papers, souvenir poster of the first direct wireless messages from England to Australia, Amalgamated Wireless Australasia Ltd.

    Australian Parliamentary debates relating to wireless telegraphy, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes report on a Parliamentary debate on Imperial telegraphic communication, press cuttings about transatlantic wireless communication, map showing Marconi transatlantic stations and ship and shore stations, organised as a wireless exchange for carrying on a commercial service, petition of right by the Marconi companies regarding the provision of wireless services in Canada, correspondence about the inauguration of the service, including telegrams of congratulation from Lord Kelvin, Earl Grey, Alfonso Marconi, Luigi Solari, J.

    Fleming, Sydney Buxton and the Royal Institution, and communications from newspapers about sending messages via the service, Oct. Marconi Extent : 1 box Scope and Content: Comprises notes on the design of high power wireless stations for the Scheme, c. Official documents and reports relating to the Enquiry and the Advisory Committee's investigations, Shelfmark: MS. Fleming, including a memorandum on the scientific evidence before the Committee, drafts, proofs and copies of Marconi's evidence, including French and Spanish translations, Press cuttings, Aug.

    Marconi Extent : 3 boxes. Miscellaneous items relating to the Enquiry and its aftermath, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Comprises Cartoon in ink and watercolour on silk, relating to the Marconi Enquiry and the Liberal party's involvement, c. Hamilton, General correspondence and papers on Imperial and international communications, , Shelfmark: MS. General correspondence and papers on Imperial and international communications, Shelfmark: MS.

    Papers concerning early experimental work on short wave transmission, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises correspondence between Guglielmo Marconi and Godfrey Isaacs about experiments being conducted by Marconi in Italy [probably on short wave transmission], reports by C. Franklin on short wave experiments at Rome and Carnarvon, correspondence between Guglielmo Marconi, C. Franklin and Isaacs about short wave experiments, messages between Marconi, Franklin, Gray and others about short wave experiments, report by Marconi on the results of the long distance receiving tests carried out on board the SY Elettra with metres continuous waves, transmitted by the experimental station at Poldhu, souvenir copy of message transmitted between Poldhu and Cape Town using the beam system, Marconi Extent : 1 box Scope and Content: Includes reports on strength of reception of signals between various stations.

    Correspondence and papers on short wave experimental work, Shelfmark: MS. Drafts and copies of descriptive leaflets and other descriptive literature on the beam system, Shelfmark: MS. Agreements and licences relating to experimental work and commercial beam stations, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes lecture about the wireless telegraphy and the Dorchester beam station, press releases and reports about the Bodmin and Bridgwater beam stations, including detailed descriptions, Agreement for electricity supply to Grimsby Station, press releases and reports on the Central Radio Office and the beam stations at Dorchester and Somerton, in connection with press visits, notes on the Dorchester and Somerton stations, souvenir programme for Imperial Conference delegates' visit to Dorchester and Bridgwater stations, souvenir programme for Empire Press Conference delegates' visit to Dorchester and Somerton stations, Papers relating to specific overseas beam stations and services and to the general provision of worldwide beam services, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Comprises papers including agreements, press releases, and congratulatory messages relating to the establishment of beam services to South Africa, Canada, Australia, India, Egypt, Spain and Portugal, general information on beam wireless, lists of stations with dates of opening and operating wavelengths, and maps showing range of services, c. Press cuttings, typescript and published articles on world communications, especially the beam system, Shelfmark: MS.

    Photographs of beam stations in Britain and worldwide, Shelfmark: MS. Promotional literature for 'Via Marconi' international wireless services and Imperial and International Communications Ltd. Press releases on world communications, Shelfmark: MS. Records concerning the establishment and early administration and operation of the Marconi International Marine Communication Company Ltd. Circular no. General Orders, Shelfmark: MS.

    Correspondence and papers regarding negotiations and contracts with the Admiralty, including tests, Shelfmark: MS. Correspondence and papers regarding negotiations and contracts with the Admiralty, including tests, , c. Papers concerning lightship and lighthouse installations, Shelfmark: MS. Papers concerning business with Lloyd's, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes letter from Lloyd's about their possible interest in wireless telegraphy for communication with ships, agreement with Lloyd's, with related papers, papers concerning legal disputes between Lloyd's and the Marconi Companies, Papers relating to early trials at sea and wireless telegraphy services for ships, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Includes correspondence and papers about trials on the RMSS Princess Clementine , correspondence and papers about trials on the Lake Champlain and RMS Lucania , Marconigram to the Lake Champlain , letter from Andrew Gray to Marconi about the wavelength to be used on Marconi's return voyage on the SS Philadelphia , with the track chart of the Philadelphia showing points where Marconi received messages from Poldhu, and an article by Fleming giving the first notice of the 'daylight effect' on wireless transmission, papers about experiments on the Carlo Alberto , incorporating correspondence between Marconi and J.

    Fleming discussing the use of a magnetic detector, correspondence and papers about further trials and provision of services on the RMS Lucania and Campania , letter from Lee De Forest to Marconi about claims of distances achieved by wireless apparatus and issuing a challenge, with Marconi's response, reports of working of long distance telegraphs on board various ships, report of communications made on the Caronia , correspondence and report of trials on the Laurentic , Papers concerning the provision of wireless news services, Shelfmark: MS. Paul on 8 Nov. Paul , 15 Nov.

    Marconi Extent : 1 box Scope and Content: Includes typescript copies of messages for first issue, Issues of various other ocean newspapers, Shelfmark: MS. Papers relating to radio beacons, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises press releases, cuttings and articles on radio beacons, report on tests on SS Vestal , a Trinity House vessel, papers, press releases and cuttings about microwave radio beacons developed by Marconi, Press releases, cuttings and articles relating to maritime wireless telegraphy, Shelfmark: MS.

    Correspondence concerning agreements with the White Star Line for provision of wireless services, and negotiations about payment for messages sent from the Titanic , , Shelfmark: MS. Company correspondence in the aftermath of the sinking, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises telegrams to and from the American company and North American shore stations about attempts to obtain news of the disaster correspondence with the Newfoundland Governor and the Canadian company about the Governor's inability to obtain news from the Cape Race Station correspondence about the Birma operator being a nuisance during the Titanic emergency correspondence and papers concerning Harold Bride and Jack Phillips, the Titanic 's radio operators correspondence with the General Post Office about its investigations into the event.

    Papers concerning the gathering of documents in preparation for the British Enquiry, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises correspondence with the American company about sending documentation for U. Enquiry, and sending the proceedings of the U. Enquiry correspondence with Canadian company, about sending documentation for Canadian stations correspondence with Brussels company, about sending documentation for their ships correspondence with French company, about sending documentation for their ships correspondence with German 'Debeg' company, about sending documentation for their ships correspondence with French and Belgian companies, and copies of messages sent by these and other companies.

    Other papers, Shelfmark: MS. Marconi Extent : 2 vols. Scope and Content: Two sets of copy messages about ice in the vicinity of the Titanic , distress messages following the collision with an iceberg, and messages from ships about coming to the aid of the stricken vessel. Operational messages Shelfmark: MSS. Marconi Extent : 6 boxes Scope and Content: Messages relating to shipping and to radio traffic, including enquiries and reports as to the current situation, and the difficulty of obtaining information. Personal messages Shelfmark: MSS.

    Press messages Shelfmark: MSS. Marconi Extent : 6 boxes Scope and Content: Messages from the press seeking news and personal stories about the sinking. Marconi Extent : 3 boxes Scope and Content: 1st, 2nd, 6th, 9th, 11th, 12th, 13th days only [possibly those days on which evidence pertaining to wireless telegraphy was heard]. Marconi Extent : 1 folder Scope and Content: Comprises Marconigrams about value of wireless in saving lives of those on board the Republic reports by the wireless operators on the Republic and Baltic Binns and Tattersall about the events surrounding the disaster menu and programme for dinner in honour of Binns and Tattersall receipt for watch given to Binns photograph of Binns receiving the watch from Marconi photographs of the Republic , one autographed by Binns.

    Papers relating to the sinking of the Lusitania , Shelfmark: MS. Other papers on sea disasters and rescues, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Comprises Timely Rescues: list of marine disasters in which wireless figured, press releases relating to sea rescues and wireless involvement, reports on the loss of the Vestris , Photographs of ships, some showing Marconi equipment, c. Album of photos of ships and marine equipments, Shelfmark: MS.

    General correspondence and papers about wireless press services, Shelfmark: MS. Monthly reports on news services, Shelfmark: MS. Wireless press bulletins issued on the SS Leicestershire , with two photographs of a ship [presumably the Leicestershire ] in harbour in Malta, Shelfmark: MS. Papers concerning the development of wireless telephony, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Includes cutting of article by William Preece on Wireless Telephony, letter about Round's intention to conduct wireless telephony experiments at Broomfield, letter from J.

    Fleming about a proposed article on wireless telephony, papers about experiments conducted by Marconi in Sicilian waters, letter from H. Round to Guglielmo Marconi about wireless telephone sets being sent to Italy, including technical details, American Telephone and Telegraph Company brochure on wireless communication, including reference to wireless telephony, Company leaflet on the Wireless Telephone, c. Papers concerning Government committees on Imperial and international wireless telephony schemes, Shelfmark: MS. Press releases, cuttings and articles relating to wireless telephony, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Comprises copies of the North Atlantic Times produced on the CPOS Victorian on which many of the delegates travelled, with related correspondence, papers, cuttings and photographs about this and wireless telephony demonstrations on the ship.

    Correspondence and papers about the development and administration of sound broadcasting by the company, predominantly Shelfmark: MS. Burrows, including correspondence with the GPO about applications for and issue of licences for broadcasts correspondence about practical arrangements for broadcasts including some by the British Broadcasting Company , including the engagement of artistes letters commenting on the quality of reception of programmes. Other papers relating to sound broadcasting by the company, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises copies of licences for the station at Marconi House in London 2LO , with related correspondence, circuit diagram of the 2LO transmitter used at Marconi House between and , c.

    Marconi Extent : 1 box Scope and Content: Includes papers about the formation of the company, including memorandum and articles of association, copy of the company's broadcasting licence and agreement, programmes of broadcasts, Apr. Papers regarding royalties and fees, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Comprises papers relating to the approval of and royalties payable on wireless sets, especially the amounts due for use of Marconi patents, agreements and fees payable for the broadcasting of literary and dramatic works, Technical descriptions and other papers relating to broadcasting stations in Britain, Shelfmark: MS.

    Press releases and other papers concerning broadcasting stations and other wireless stations and services worldwide, , Shelfmark: MS. Maps and lists of broadcasting stations, Shelfmark: MS. Photographs of broadcasting stations in Britain and worldwide, c. Press cuttings and releases relating to broadcasting stations and broadcasts, Shelfmark: MS. Correspondence with M. Marconi Extent : 1 folder Scope and Content: Also includes a report on wireless in China, , and a note on wireless in Iran, General press cuttings on sound broadcasting, Shelfmark: MS.

    Typescript and published articles on sound broadcasting, Shelfmark: MS. Papers relating to early experimental work on television, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Includes papers about demonstrations to British Association meetings, press release and article about the quality of picture definition achievable, Press releases and technical descriptions relating to experimental and regular television broadcasts by the BBC, with press cuttings including programme schedules, Shelfmark: MS.

    Booklets and articles on television, c. Papers relating to the Baird television system, and articles and statements about American systems, Shelfmark: MS. Papers relating to the early use of wireless telegraphy in aviation, Shelfmark: MS. Thorne-Baker of the Daily Mail, taken at the time of air-to-ground experiments on Salisbury Plain, letter from the Italian Ministero della Marina to Guglielmo Marconi, requesting that he proceeds with installing wireless telegraphy on dirigibles, historical notes on the development of aircraft radio, c.

    Pamphlets and published articles on the use of wireless telegraphy in aviation, c. Marconi Extent : 1 folder Scope and Content: Includes Programme of demonstration on aircraft position and direction finding by Wireless, c. Press releases, extracts and typescript articles on general aeronautical matters, Shelfmark: MS. Papers relating to pioneer flights involving wireless telegraphy, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Includes Wireless Press memoranda about handling news on transatlantic flights also news on events in Russia , press release about the flight of the airship R. Courtney's attempted flight across the Atlantic and rescue using wireless, press releases and cuttings about flights by Major Kingsford-Smith, correspondence and press cuttings about the attempted transatlantic flight of Majors Idzikowski and Kubala of Poland, ending in a crash in the Azores in which Idzikowski died, correspondence and press cuttings about Lieutenant-Commander Glen Kidston's flight to South Africa accompanied by a Marconi radio operator, T.

    Vallette, and Kidson's subsequent fatal crash, press releases about flights by the airship R. Victor Bruce, correspondence and papers about Sir Alan Cobham's survey flight to Africa, booklet and press cuttings about Captain C. Press cuttings about pioneer flights, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes lists of equipment used, reports from company staff in the field, and correspondence with the Admiralty.

    Correspondence with the Admiralty, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises general correspondence and papers relating to Admiralty wireless stations in Britain, , including particulars of Marconi stations intercepting for the Admiralty Intelligence Division and 'Captain Round's List' of [direction finding] stations and numbers of permanent staff, correspondence with Captain Hope, Captain James and Lieutenant Robb at the Admiralty, on administrative matters regarding direction finding stations, , Correspondence relating to the construction, staffing and administration of Admiralty wireless stations, Shelfmark: MS.

    Volume containing notes on Admiralty 'X' and 'B' Type wireless stations, c. Scope and Content: Comprises notes relating to the selection of sites and the construction, equipping and staffing of stations. Inventories of Admiralty wireless stations, Shelfmark: MS. Maps and plans, Shelfmark: MS.

    Correspondence with the Admiralty regarding overseas wireless stations, Shelfmark: MS. Volume containing notes on overseas Admiralty wireless stations, c. Scope and Content: Includes technical data on stations and notes relating to their construction and staffing.

    Guide to the Still Picture Branch Holdings

    Papers relating to direction finding, Shelfmark: MS. Tremellen inviting him to join Round's team, photograph of direction finding equipment and staff at Chelmsford prior to leaving for France, plot of readings recorded at Abbeville, showing the change due to the 'night effect', photographic copy of pages of readings, news cuttings relating to the use of direction finding at the time of the Battle of Jutland, and the identification of H.

    Round as the man behind direction finding, Maps showing Zeppelin and ship movements plotted using direction finding, Shelfmark: MS. Map of Northern France showing the positions of wartime direction finding stations c. Marconi Extent : 1 map Scope and Content: May have been compiled at a later date. Marconi Extent : 1 folder Scope and Content: Includes note of an intercepted wireless message in German announcing the outbreak of war, copied down by H. Round, letter from Godfrey Isaacs to Guglielmo Marconi advising that experiments with America are not possible, reporting on speculation as to the side Italy will take in the war, and referring to the hope of concluding the contract for the Imperial stations, Sept.

    Naval Radio Service, copies of the message announcing the cessation of hostilities, with related papers, Nov. Allen giving a history of the work of the department during the war, including details of the recruitment and training of ships' radio officers, Volume of printed letters to men on service including news of staff in the forces, extracts from correspondence received, and rolls of honour, Shelfmark: MS. Administrative correspondence relating to the employment of Isaac Shoenberg, a former employee of the Russian company, in Britain, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Draft of the book with chapters 4, 10, 11, 12 and 15 missing, possibly removed because of the sensitivity of the content; internal company correspondence directing adverse criticism at the draft overall; correspondence from the Directors of Military and Naval Intelligence with criticism noting material that should not be published in the national interest.

    Grant, wife of the company chairman Admiral Grant, in appreciation of her work, especially following a bombing incident at Chelmsford, administrative papers relating to wartime production, notes on valve laboratories during the war, correspondence about war damage repairs at Chelmsford, Album of correspondence and memorabilia relating to the War, Shelfmark: MS. Grant, Chairman of the company. Drawings of early equipment, Shelfmark: MS. Papers relating to early equipment, c.

    Marconi Extent : 1 box Scope and Content: Comprises papers relating to the coherer, c. Bowden reporting his satisfactory testing of instruments including coils, keys, receivers, inkers and jiggers, annotated diagrams by Marconi of single and double-disc arrangements for a discharger, correspondence and notes on X-Stoppers for reducing atmospheric interference , note of three tubes removed and sent to Mr. Hicks, c. Robinson of HMS Vernon about its drafting, technical drawings and wiring diagrams of equipment for stations, some named, Papers relating to the thermionic valve, Shelfmark: MS.

    Fleming to Marconi referring to his discovery of a method of rectifying electrical oscillations, which led to his invention of the thermionic valve, correspondence, including from H. Round and J. Fleming, concerning valves, papers relating to dull emitter or low temperature emitting valves, report on the emission of X-rays from valves, letter from J. Fleming to Marconi noting the 21st anniversary of the invention of the thermionic valve, articles and press cuttings on valves, Papers for court cases relating to thermionic valve patents, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Comprises transcripts of proceedings of a dismissed petition for prolongation of J. Fleming's patent No. Correspondence and papers of H. Round on technical matters, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises correspondence, reports on work done by Round and his staff, report by Round on high frequency resistance measurements, n. Papers concerning directional wireless and direction finding, Shelfmark: MS. Marconi , for papers on direction finding during World War 1.

    Scope and Content: Comprises letter from Cuthbert Hall to Marconi about the possibility of ascertaining a ship's position, telegrams between Marconi and Kemp about experiments with directional aerials, correspondence with the Admiralty concerning directional transmission and reception, and the possibility of direction finding, correspondence about the use of directional wireless on Belgian ships, paper by Marconi on directional transmission and reception, letter from W. Ditcham discussing technical aspects of a direction finder, letter from H.

    Kenworthy to the Chief of the Field and Air Division of the company, reporting the successful location [by direction finding] of an unlicensed transmitter during the General Strike, with an organisation chart prepared according to a later note for services during the strike, and copies of newspapers issued at the time, Descriptive leaflets and articles on direction finding, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Comprises descriptive leaflets for direction finding equipment, c. Papers concerning facsimile transmission by wireless, , Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises drafts and copies of relevant patents, , report by G. Wright on Bartholomew and McFarlane's method of picture telegraphy and its possible application to wireless, draft agreement with the Daily Mirror and Bartholomew and McFarlane for the use of wireless picture telegraphy patents, with related correspondence, reports by D. Roe on picture telegraphy, Papers concerning the Marconi and other systems of facsimile transmission, , Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Includes press releases and cuttings, articles, draft technical descriptions and brochures. Specimens of images and documents sent by facsimile transmission, c. Album of specimens of Marconi facsimile transmission and photographs of equipment, Shelfmark: MS. Album of specimens of Marconi facsimile transmission, Shelfmark: MS. Papers concerning microwave experiments, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Includes letter reporting the opening of the micro-wave radio telephone service for the Vatican, and photographs of the equipment and aerial, reports, papers and photographs of G. Mathieu on microwave research, text of lecture by Marconi to the Royal Institution on 'Radio Communication by Means of Very Short Waves', text, with translation, of paper given by Marconi to the Royal Academy of Italy on the propagation of micro-waves at a considerable distance, press releases and cuttings, Marconi Extent : 1 box Scope and Content: Includes historical summary of work on VHF microwave , report and press cuttings on the first use of Marconi VHF equipment for press reporting, report of VHF trials carried out at Battersea Power Station to investigate its practicability on large building sites, Miscellaneous technical papers, Shelfmark: MS.

    Annual and other reports, minutes and related correspondence, Shelfmark: MS. Correspondence and papers concerning the American company's business, c. Marconi Extent : 1 box Scope and Content: Predominantly correspondence with Guglielmo Marconi, including correspondence regarding a possible high power station for the World's Fair at St. Louis, and an exhibit at the Fair, letters from Cuthbert Hall enquiring about Lee De Forest having once applied to Marconi for a situation, with a copy of the application dated , correspondence about possible business in Alaska, correspondence, including a report by David Sarnoff, on the receiving system developed by a Mr.

    Armstrong, two copies of agreement by the American company for Guglielmo Marconi to negotiate a contract with the Italian Government, photographs of wireless stations at New Brunswick and Belmar, New Jersey, Manual of the Marconi Institute, c. Reports, brochures, publications and other booklets, Shelfmark: MS. Press cuttings, Shelfmark: MS. Stevens, Manager and Electrician at the Australian General Post Office, concerning experiments on the possibility of wireless communication between Rottnest Island and Fremantle, articles on wireless telegraphy with specific reference to Australia and New Zealand, papers relating to a visit by James Swinburne to Australian stations, including Hobart and Melbourne, including letters from Fisk, Denison and Swinburne, and photographs of equipment at Hobart Station, statements of claim, defence and counterclaim in case of J.

    Download Electron Tubes Vol I

    Hamilton v. Typescript diary of A. Scope and Content: Contains entries relating to business only, for the duration of Ginman's presidency. Marconi Extent : 1 folder Scope and Content: Marconi company papers relating to ITT and related companies, especially their potential encroachment on Marconi interests. Documents relating to Telefunken, , Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Comprises article on the use of Telefunken apparatus for increasing the safety of railway traffic, booklet on the Telefunken high power station at Nauen, booklet on peculiarities in the mounting and construction of the 'Telefunken' system, c.

    Papers relating to the Marconiphone Co. Burrows about collaboration with the Gramophone Company, memorandum announcing the formation of the Marconiphone Company Ltd. Documents concerning miscellaneous companies, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises documents concerning the National Electric Signalling Company, including correspondence about a possible amalgamation of the Marconi and Fessenden systems, ; a copy letter from Fessenden to The Times about the Berlin Radio-Telegraphic Convention, ; and a licence agreement, documents relating to the United Wireless Telegraph Company, including press article about fraud allegations, ; indemnity bonds given by United Wireless Telegraph Company to H.

    Hugh Bauerlein, document concerning the constitution of the Spanish Compania Nacionale de Telegrafia Sin Hilos, with telegram relating to the opening of a service in Spain, including the text of messages sent by the King and Queen of Spain to British and Italian counterparts, documents concerning the Radio Communication Company, copy agreement for sale of various properties, patents etc.

    Memoranda and articles of association, Shelfmark: MS. Photocopies of minutes, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises photocopied minutes of shareholders' meetings, directors' meetings, Photocopies of minutes of directors' meetings, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Copies of selected extracts only. Minutes of technical committees, Shelfmark: MS. Typescript and manuscript minutes and reports of general meetings, Shelfmark: MS. Printed annual reports and accounts, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises chairmen's speeches and typescript proceedings, notices and papers for shareholders, press reports of meetings, Marconi Extent : 1 box Scope and Content: Includes correspondence about the resignation of Samuel Geoghegan as a director, correspondence about the resignations of Sir Charles Steward and Henry Morgan as directors, copy resolution concerning F.

    Kellaway's salary as Managing Director, letter from Kellaway authorising the affixing of his signature to share certificates using a rubber stamp, with the stamp, certificate of incorporation of Coastal Radio Developments Ltd. Policy papers, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes reports concerning post-war policy, policy and management relations document, Management plan and five year forecast, history of the growth of the company, Miscellaneous papers on organisation and management, Shelfmark: MS.

    ICL with Plessey, instructions regarding security considerations for secret work, Management information packs, miscellaneous papers about company organisation, Business and technology plans and other policy documents, Shelfmark: MS. Lifecycle management handbooks, Shelfmark: MSS. Marconi Extent : 2 boxes. Patents granted to Marconi and the company, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes patent nos. Patents, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises patents originally granted to Lodge and Muirhead, together with a deed of assignment of patents to the company, patents granted to J.

    Fleming, some jointly with the company, including no. Franklin, some jointly with the company, patents awarded to Bellini and Tosi, Marconi Extent : 1 box Scope and Content: Comprises patents in the names of various parties some jointly with the company including Poulsen, G. Wright, Entwistle, Andrew Gray, C. Franklin, patents granted to H. Round, some jointly with the company, patents granted in Italy, Printed copies of specifications for company patents, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Comprises specifications for transmitters, receivers, measuring apparatus, Copies of specifications for various patents relating to wireless telegraphy, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes non-company patents. Papers relating to early patents, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises papers relating to patent no.

    Kempe, protesting at the attitude of The Electrician towards his patent, c. Fleming and S. Miscellaneous correspondence regarding patents, Shelfmark: MS. Miscellaneous papers concerning patents, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes published notes on Lodge's patent for wireless telegraphy by Silvanus Thompson, abridgements of specifications of patents for phonographs, gramophones and like sound transmitting and reproducing instruments , specifications of patents for inventions by P.

    Wright and P. Brandon, papers concerning a patent application, miscellaneous patent specifications, Government in the U. Marconi Extent : 3 boxes Scope and Content: Includes copies of many earlier documents pertinent to the case. Papers relating to an agreement with RCA regarding patent no. Arrangement: By country. Arrangement: By reference number. Patent numbers , Shelfmark: MS. Telefunken patent numbers , Shelfmark: MS. Sterling and Poulsen patents, Shelfmark: MS. British and Dutch patents, Shelfmark: MS. Associated companies' patents, Shelfmark: MS. Loose register sheets of lapsed patent numbers , Shelfmark: MS.

    Applications abandoned register, Shelfmark: MS. Register of applications by overseas companies: Telefunken, Shelfmark: MS. Classes All classes, but appears to cover different patent numbers Shelfmark: MS. All classes, Marconi companies Shelfmark: MS. All classes, Marconi and associated companies Shelfmark: MS.

    Scope and Content: Alphabetical list of names and addresses of inventors. Index of inventors M-Z, c. Register of inventors A-F, c. Register of inventors G-N, c. Register of inventors O-Z, c. Patent numbers Shelfmark: MS. Foreign, Shelfmark: MS. Correspondence file list, c. Correspondence cross index A-L, c. Correspondence cross index M-Z, c. Trademarks register, Shelfmark: MS. Arrangement: Chronological. Scope and Content: Lists Marconi trademarks by number, overseas Marconi trademarks by countries A-O, Creda trademarks by number, Scope and Content: Lists overseas Marconi trademarks by countries P-Z, Marconi subsidiaries trademarks, Scope and Content: Lists Marconiphone trademarks by country.

    Index of trademarks, Shelfmark: MS. Papers concerning trademarks, c. Marconi Extent : 1 box Scope and Content: Comprises Issues of the Trade Marks Journal containing entries for Marconi trademarks, , , specimen drawings of trademarks, c. Papers concerning Marconi's legal relationship with the company, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes papers relating to the insurance of Marconi's life, contractual agreements, and correspondence on probate matters after Marconi's death.

    Marconi Extent : 1 box Scope and Content: Comprises copies of correspondence between the company and Marconi, possibly for legal proceedings, agreements and related correspondence, correspondence about Marconi's estate, Legal papers relating to an order from Polskie Radjo for the supply and erection of and alterations to broadcasting stations in Poland, Shelfmark: MS. Correspondence and papers concerning the licensing of Marconi Instruments products, Shelfmark: MS. Marconi Extent : 1 folder Scope and Content: Appoints the company as suppliers of specified equipment.

    Legal opinions regarding patents and other legal questions, , Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Most form an incomplete numbered sequence with an initial list; also includes notes of retainers for legal services. Miscellaneous legal papers, Shelfmark: MS. Papers concerning various cases, Shelfmark: MS. Learned v. Guglielmo Marconi, cases involving the company and the De Forest Wireless Telegraph Company, a possible libel of Marconi or the company in an article by Fessenden, Minutes of evidence of an investigation of interference between applications of Marconi, Fessenden and Shoemaker, Shelfmark: MS.

    Proceedings of the case of Marconi v. Shoemaker v. Fessenden, Shelfmark: MS. Papers relating to an action against French companies, including an appeal, Shelfmark: MS. Papers and transcripts of proceedings in the case of Isaacs v. Hobhouse, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes correspondence with and about complaints by J. Transcripts of proceedings in the case of the company v. Published proceedings and judgement for the case of the company v. Papers concerning an agreement with the Radio Communication Company Ltd.

    Gaumont-British Picture Corporation Ltd. Papers and correspondence concerning the case of Crook v. Documents, plans and correspondence relating to property, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Includes copy abstract of title to the Broomfield site, deeds, plans and related papers concerning sites in Chelmsford, Broomfield, Writtle and Galleywood Common, proofs of sale particulars for Marconi House, Strand, specification of property for insurance, particulars of property owned and rented, plans of New Street works, Chelmsford, , article about extensions to the Marconi Works and College in Chelmsford, plan of Baddow Research Laboratories, Marconi Extent : 1 roll.

    Photographs of works at Chelmsford, Shelfmark: MS. Photographs of various establishments, c. Balance sheets and accounts for Marconi Ireland Ltd. Shares and investments 'R' and private ledger, Shelfmark: MS. Ledger for various subsidiary companies, Shelfmark: MS. Special journal, Shelfmark: MS. Wages book, Shelfmark: MS. Office staff weekly salaries book, Shelfmark: MS. Register of applications for and allotments of shares, Shelfmark: MS.

    General correspondence on financial matters, Shelfmark: MS. Share certificates, Shelfmark: MS.

    Are vacuum tubes worth it?

    Financial documents relating to subsidiaries and other companies in which Marconi's Wireless Telegraph Company had an interest, Shelfmark: MS. Canmar Investment Company Ltd. Miscellaneous correspondence on financial matters, Shelfmark: MS. Report on an investigation into the accounts of the company and proposed capital reduction, Shelfmark: MS.

    Legal and other papers relating to the proposed capital reduction, Shelfmark: MS. Expenses accounts of H. White, Shelfmark: MS. Miscellaneous accounts and related correspondence, Shelfmark: MS. Sheets summarising financial information about the company, c. Booklet on works accounting system codes, Shelfmark: MS. Files on internal finances, Shelfmark: MS.

    Marconi Extent : 1 box Scope and Content: Comprises files on valuation of trade investments , senior staffs salary review, valuation of trade investments, certificates of profits forecasts for the electronics group of the English Electric Company Ltd. Staff financial files, Shelfmark: MS. Extent : 1 box Restrictions on Access: Restricted. Scope and Content: Comprises files on R. Telford, Sir Robert Telford's expenses, Scope and Content: Comprises files on H.

    Round, K. Brookes, J. George Nelson, G. Riddell, R. Kindersley, A. Edwards, H. Cox, Sir Humphrey Trevelyan, Dr. Straker, Romanian clearing, Romania: Count O'Kelly war claim, Files relating to Italian companies, Shelfmark: MS. Files relating to other European companies, Shelfmark: MS. Files relating to Venezuelan companies, Shelfmark: MS.

    Files relating to Brazilian companies and business, Shelfmark: MS. Brazil technical services agreement, File relating to C. Brazil, Shelfmark: MS. Files relating to African companies, Shelfmark: MS. Files relating to Chinese companies, Shelfmark: MS. File relating to Marconi China Ltd. Files relating to other Asian companies, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises files on Burma war claims, Marconi Philippines, Taiwan railway electrification, File relating to Amalgamated Wireless Australasia Ltd.

    Files on miscellaneous topics, Shelfmark: MS. Marconi Extent : 1 box Scope and Content: Comprises files on MD copy list, plant and machinery grants: Investment Grants Glenrothes, investment in associated companies, Eutronic Consortium, special commissions, Marconi Extent : 1 box Scope and Content: Loose papers found with this series of files.

    Scope and Content: Contains personal details, date of joining and details of stations or work. Registers of resignations and dismissals, c. Scope and Content: First section covers staff who left before may not be complete.