BT Archives

BT Archives is an archive preserving the documentary heritage of BT and its public sector predecessors. It is designated an official place of deposit for Public Records, for those records created prior to BT's privatisation in 1984.

The records include minutes, subject files, photographs, film and advertising material that tell the story of telecommunications in the UK and from the UK to overseas, from the formation of the private telegraph and telephone companies in the nineteenth century to the present day.

The earliest records held by BT Archives are those of the Electric Telegraph Company from 1846. Other private telegraph companies whose records are held are the British Electric Telegraph Company, International Telegraph Company, Submarine Telegraph Company, Electric and International Telegraph Company, British and Irish Magnetic Telegraph Company, London District Telegraph Company, United Kingdom Electric Telegraph Company, Universal Private Telegraph Company, Eastern Telegraph Company, British Telegraph Company, Irish Submarine Telegraph Company, English and Irish Magnetic Telegraph Company and the Anglo-American Telegraph Company. BT Archives also holds documents relating to the UK telegraph service of the British Post Office; the private companies being brought under the control of the Post Office in 1870.

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