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Catalogue description B.T.M. 3-Wheel Bombes and B.T.M. and W.W. 4-Wheel Bombes; USA 4-Wheel Bombes. Mr...
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| Reference: | HW 25/29 |
|---|---|
| Description: |
B.T.M. 3-Wheel Bombes and B.T.M. and W.W. 4-Wheel Bombes; USA 4-Wheel Bombes. Mr Fletcher's Registers of Bombes. The 'Bombe', a name possibly given by the Poles, who produced the first ENIGMA code-breaking machine, was developed by Alan Turing and others to break ENIGMA daily keys. 3 and 4 wheel machines were manufactured by the British Tabulating Machine Company, Letchworth. The 'W.W.' was a high speed Bombe with 'Cobra' attachment (4 wheel modification) named after its inventor, C E Wynn-Williams of Telecommunications Research Establishment, Malvern |
| Date: | 1939 Sep 01 - 1945 May 18 |
| Held by: | The National Archives, Kew |
| Legal status: | Public Record(s) |
| Closure status: | Open Document, Open Description |
| Access conditions: | Retained Until 2003 |
| Record opening date: | 11 November 2003 |
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