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Rebuilt Bombe Decryption Machine, Bletchley Park

Rebuilt Bombe Decryption Machine, Bletchley Park

C043/4621

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Credit

SCIENCE SOURCE / SCIENCE PHOTO LIBRARY SCIENCE SOURCE / SCIENCE PHOTO LIBRARY

Caption

Front view of the working rebuilt bombe at Bletchley Park, built by a team led by John Harper and switched on by the Duke of Kent, patron of the British Computer Society, on 17 July 2008. The bombe was an electromechanical device whose function was to discover some of the daily settings of the Enigma machines on the various German military networks. Its pioneering design was developed by Alan Turing (with an important contribution from Gordon Welchman) and the machine was engineered by Harold 'Doc' Keen of the British Tabulating Machine Company. Each machine was about 7 feet (2.1 m) high and wide, 2 feet (0.61 m) deep and weighed about a ton.

Release details

Model release not required. Property release not required.

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