Siemens and Halske T52e Cipher Machine, 1940s

Made:
1940-1950
maker:
Siemens and Halske AG

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Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Siemens and Halske T52e Cipher Machine, known as "Geheimschreiber" Serial No.43996

Geheimschreiber: German secret writing machine, 1940s

This cipher machine was used by German High Command for highly secret messages. The teleprinter machine automatically printed out the message as it was decrypted.

British code-breakers at Bletchley Park referred to these machines and the messages they encrypted as STURGEON. They did break this cipher, but not as easily or as often as less complex German military cipher systems.

Unlike Enigma or Lorenz messages, which were sent by radio, the Geheimschreiber was used over land lines and so could not be easily intercepted.

Details

Category:
Mathematics
Object Number:
1980-1836
type:
cipher machines
credit:
Norsk Teknisk Museum