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• See also HW 43/64

  Held by

  The National Archives, Kew

  Date

  1940-1945

  Reference

  HW 3/120

• General records of the Government Code and Cypher School

  Held by

  Date

  1914-1979

  Reference

• RAF establishment at Church Green, Bletchley, Buckinghamshire

  Held by

  The National Archives, Kew

  Date

  1944 Feb 17

  Reference

  HW 64/64

• Government Code and Cypher School: Establishment Branch: Records

  Held by

  The National Archives, Kew

  Date

  1938-1946

  Reference

  HW 64

• Operational History of Hut 3 Intelligence Guidance to Cryptography and Interception....

  Held by

  The National Archives, Kew

  Date

  1940 Jan 01 - 1945 May 08

  Reference

  HW 43/68

• Decrypts of medium/low grade German naval cypher messages

  Held by

  The National Archives, Kew

  Date

  1941 Jun 20-1942 Feb 04

  Reference

  HW 18/64

• Billeting for staff at Bletchley Park and Eastcote, Middlesex

  Held by

  The National Archives, Kew

  Date

  1939 Aug 29 - 1946 Apr 10

  Reference

  HW 64/45

• Correspondence concerning various machines and equipment including the transfer of...

  Held by

  The National Archives, Kew

  Date

  1945 Apr 01 - 1945 Dec 06

  Reference

  HW 64/59

• Billeting at GC&CS

  Held by

  The National Archives, Kew

  Date

  1941 Apr 03 - 1945 Dec 03

  Reference

  HW 64/44

• Communications including the provision of teleprinter links and bicycles for messengers

  Held by

  The National Archives, Kew

  Date

  1939 Sep 18 - 1942 Dec 16

  Reference

  HW 64/10

• Fuel economy and the provision of emergency power supplies

  Held by

  The National Archives, Kew

  Date

  1941 Sep 18 - 1945 Nov 09

  Reference

  HW 64/60

• Diplomatic Bag service between USA and the United Kingdom and its suitability for...

  Held by

  The National Archives, Kew

  Date

  1944 Apr 08 - 1944 Dec 01

  Reference

  HW 64/12

• Water supplies at Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1942 Feb 03 - 1944 Nov 20

  Reference

  HW 64/57

• GC&CS records stored at Wavendon House, Wavendon, Buckinghamshire

  Held by

  The National Archives, Kew

  Date

  1940 Jun 18 - 1945 Sep 17

  Reference

  HW 64/39

• Decrypts of Japanese army and army air force messages

  Held by

  The National Archives, Kew

  Date

  1945 Jun 21-1945 Jul 31

  Reference

  HW 52/64

• Staffing and conditions of work at Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1942 May 30 - 1943 Oct 31

  Reference

  HW 64/70

• Reports in the series VM/1501 to VM/1750.

  Held by

  The National Archives

  Date

  1943 Jan 17-1943 Jan 20

  Reference

  HW 20/64

• Liaison with the United States forces

  Held by

  The National Archives, Kew

  Date

  1943 Sep 13 - 1945 Sep 27

  Reference

  HW 64/54

• Assembly Hall at Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1942 Oct 10 - 1946 Jan 16

  Reference

  HW 64/47

• Wavendon House, Wavendon, Buckinghamshire

  Held by

  The National Archives, Kew

  Date

  1940 Aug 01 - 1941 Sep 30

  Reference

  HW 64/55