Records of the Direct Spanish Telegraph Company Limited comprising memorandum and articles of association with a special resolution.

Reports of the Deutsche See Telegraphen Gesellschaft.

Minutes of the Companhia Telegrafica Platino Brasileira, later the London Platino Brazilian Telegraph Company Limited.

Transcriptions of source material and notes by Douglas on Elizabethan and Stuart journalism, [1935-1954], mainly comprising typed transcriptions of newspapers, pamphlets and similar sources of news, 1566-1622, with associated notes and references by Collins, and including typescript of 'Elizabethan journalism, 1590-1610' by Collins; manuscript and typescript introduction, table of contents and bibliography of A Handlist of News Pamphlets, 1590-1610 (Walthamstow South-West Essex Technical College and School of Art, London, 1943) by Collins; file of correspondence with archivists (mainly at Essex Country Record Office, the Bodleian Library and Chester City Record Office), concerning sources of Elizabethan and Stuart journalism and pamphlets, 1948-1954, with a manuscript copy of an interim report on the subject, [1949]; notebook containing research on the early modern postal service; manuscript notes on Sixteenth Century French news pamphlets and related material, including research undertaken on Collins' behalf by Robert J North, with covering letters from North to Collins, 1934.

Minutes of annual general meetings of the China Submarine Telegraph Company Limited.

Records of central administration of the Post Office Telegraphs and Telephones (later Post Office Telecommunications) including records of the Post Office Board (including meeting papers TCB 54), Post Office Advisory Committee and other central functions.

The records concern both strategic telegraphy and telephony activities, such as policy, planning, legal papers (including on the takeover of the National Telephone Company) and routine reporting, and central operational activities including personnel and communications (including Joint Production Council publications, staff magazines, press notices, media coverage and training school and studio photographs).

These central administration records also include the minuted papers relating to telecommunication services 1889-1977 that, for various reasons, fell outside previous archival transfer. The subjects in these minuted papers (TCB 2) include satellite communications (Early Bird), international telephone services, policies toward staff and unions, telephone information services (including ship telephone services, roads and weather, teletourist service, speaking clock and the Santa Claus service), and technological developments (including telephone kiosks, the answering machine, "Amplifying Telephone" and "Laryngaphone").

Records of Cable and Wireless Limited, comprising reports of the managing committee, finance committee and investment committee; reports of a tour of inspection of Mediterranean telegraphic communications; and papers relating to Sir Edward Wilshaw, chairman.

Records of Cable and Wireless (Holding) Limited. The records comprise of Court of Directors minutes and presented papers, Committees including Managing Directors minutes, Committee reports to the Board, Annual General Meetings minutes, verbatim reports of ordinary and extraordinary general meetings, annual reports and accounts, balance sheets, cash books, journals, purchases and sales journals, financial statements, investment and general ledgers, and summary list of investments.

Minutes of board meetings of the British Indian Submarine Telegraph Company Limited.

Records of the British Indian Extension Telegraph Company Limited comprising minutes of board meetings, annual general meetings and liquidators; and an agreement.

Records of the British Australian Telegraph Company Limited comprising minutes of annual general meetings, meetings of the board and meetings of liquidators.

Records of Associated Cable Companies, comprising accounts, journals and cash books.

Records of the African Direct Telegraph Company Limited, comprising papers relating to the formation of the company; minutes and papers of board meetings; annual reports and accounts; ledgers and journal.