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• The History of Hut 8 by A P Mahon

  Held by

  The National Archives, Kew

  Date

  1939 Jan 01-1945 Dec 31

  Reference

  HW 25/2

• ENIGMA machine - early history (written after the event). H R FOSS: Reminiscences...

  Held by

  The National Archives, Kew

  Date

  1949 Sep 30-1949 Oct 31

  Reference

  HW 25/10

• Early correspondence relating to the ENIGMA cypher machine, including the patent...

  Held by

  The National Archives, Kew

  Date

  1924 Jun 02-1936 Mar 25

  Reference

  HW 25/6

• Dossier on Polish Liaison - summaries of various documents relating to the Polish...

  Held by

  The National Archives, Kew

  Date

  1920 Jan 01-1941 Oct 16

  Reference

  HW 25/15

• Later reports cover air support to the Italian push from Libya into Egypt

  Held by

  The National Archives, Kew

  Date

  1940 July 10-1940 Sept 21

  Reference

  HW 21/25

• Solution of German Teleprinter Cyphers (Testery) Linguistic Methods

  Held by

  The National Archives, Kew

  Date

  1941 May 01 - 1945 Sep 30

  Reference

  HW 25/28

• Miscellaneous teleprinter messages to and from CBME

  Held by

  The National Archives, Kew

  Date

  1941 Sep 01 - 1943 Jun 13

  Reference

  HW 51/25

• Decrypts of Japanese army and army air force messages

  Held by

  The National Archives, Kew

  Date

  1944 Oct 01-1945 Feb 28

  Reference

  HW 52/25

• A technical description of COLOSSUS I by D C Horwood, dated August 1973

  Held by

  The National Archives, Kew

  Date

  1942 Jan 01 - 1945 Dec 31

  Reference

  HW 25/24

• Italian Mission correspondence and notes. Catty's Cypher Security Mission in Rome...

  Held by

  The National Archives, Kew

  Date

  1945 Jan 10 - 1945 Aug 22

  Reference

  HW 53/25

• Monthly reports issued by the headquarters of the RAF Middle Eastern Wireless Service...

  Held by

  The National Archives, Kew

  Date

  1943 Jan 01-1943 Mar 01

  Reference

  HW 41/25

• Czech transmitters in UK

  Held by

  The National Archives, Kew

  Date

  1942 Aug 27-1945 Jul 03

  Reference

  HW 34/25

• DF Subcommittee - minutes of meetings and related correspondence

  Held by

  The National Archives, Kew

  Date

  1942 Jan 30-1945 Jun 23

  Reference

  HW 42/25

• Number not used

  Held by

  The National Archives, Kew

  Date

  Reference

  HW 8/25

• Account of the methods used for breaking German teleprinter cypher messages

  Held by

  The National Archives, Kew

  Date

  1941 June 01-1945 June 30

  Reference

  HW 25/4

• MGB (Soviet Ministry of State Security) Traffic: Moscow from New York, USA. (Described...

  Held by

  The National Archives, Kew

  Date

  1944 Aug 1-1944 Dec 28

  Reference

  HW 15/25

• Japanese naval decrypts

  Held by

  The National Archives, Kew

  Date

  1943 Jul 14-1943 Jul 21

  Reference

  HW 23/25

• 21288-22588

  Held by

  The National Archives, Kew

  Date

  1942 Mar 01-1942 Mar 16

  Reference

  HW 19/25

• GAF Recce and bombing operations

  Held by

  The National Archives, Kew

  Date

  1944 Mar 19-1945 Mar 28

  Reference

  HW 13/25

• Verbatim German language texts issued as BP daily reports: all messages in GP Code...

  Held by

  The National Archives, Kew

  Date

  1943 Apr-June

  Reference

  HW 16/25