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• Decrypts of intercepted diplomatic communications. Argentina: 1238-1239, 1490. Chile:...

  Held by

  The National Archives, Kew

  Date

  1920 Feb 11-1920 Mar 5

  Reference

  HW 12/5

• Minutes of monthly cypher production meetings held by L Department (the Cypher Security...

  Held by

  The National Archives, Kew

  Date

  1954 Dec-1960 Jan

  Reference

  HW 9/5

• Bletchley Park Records. Correspondence concerning the location and retention or destruction...

  Held by

  The National Archives, Kew

  Date

  1945 Aug 20 - 1950 Jul 07

  Reference

  HW 50/5

• Staffing matters including recruitment, deployment and conditions of service

  Held by

  The National Archives, Kew

  Date

  1944 Jan 01 - 1944 Jun 30

  Reference

  HW 72/5

• Messages concerning the development of communications to relay intercepted enemy...

  Held by

  The National Archives, Kew

  Date

  1941 Nov 26 - 1943 Jun 29

  Reference

  HW 59/5

• The German Central Cryptographic Organisation (account based on Abwehr and SD sources)....

  Held by

  The National Archives, Kew

  Date

  1939 Sep 01 - 1945 May 08

  Reference

  HW 73/5

• Movement of Croatian officer

  Held by

  The National Archives, Kew

  Date

  1944 Dec 01

  Reference

  HW 26/5

• Japanese communcations: messages and reports concerned with intercept, analysis and...

  Held by

  The National Archives, Kew

  Date

  1943 Jan 01 - 1943 Sep 30

  Reference

  HW 67/5

• GAF safety service organisation; general survey of Zenit (meteorology) traffic; computer...

  Held by

  The National Archives, Kew

  Date

  1939-1945

  Reference

  HW 2/5

• Signals concerned with the interception of Middle East and North African communications

  Held by

  The National Archives, Kew

  Date

  1944 May 01 - 1944 Sep 30

  Reference

  HW 68/5

• Including order to Wehrmacht from Keitel calling for unconditional obedience to new...

  Held by

  The National Archives, Kew

  Date

  May 5 1945-May 6 1945

  Reference

  HW 5/702

• Further decrypts relating to the development of the V weapons

  Held by

  The National Archives, Kew

  Date

  1944 Feb 22- May 26

  Reference

  HW 5/709

• Reports of traffic taken on German Army teleprinter links

  Held by

  The National Archives, Kew

  Date

  1944 Aug- 1945 Feb 20

  Reference

  HW 5/738

• Volume 2 of "BROWN " reports

  Held by

  The National Archives, Kew

  Date

  1941 Mar 25- 1943 June 4

  Reference

  HW 5/720

• Unreported documents

  Held by

  The National Archives, Kew

  Date

  1944 Apr 6 - 1945 May 2

  Reference

  HW 5/718

• Further decrypts relating to the development and deployment of V weapons, including...

  Held by

  The National Archives, Kew

  Date

  1944 May 2 - July 19

  Reference

  HW 5/710

• MSS reports relating to guided weapons selected for Dr R V Jones and CROSSBOW watch

  Held by

  The National Archives, Kew

  Date

  1944 July 2 - 1945 Apr 13

  Reference

  HW 5/722

• Further decrypts relating to missile testing at Peenemuende and operations involving...

  Held by

  The National Archives, Kew

  Date

  1944 Sept 25 - Oct 29

  Reference

  HW 5/713

• Decrypts of "KLAVIER" code messages relating to flying bomb activity

  Held by

  The National Archives, Kew

  Date

  1944 July 22 - Sept 1

  Reference

  HW 5/728

• Decrypts of "KLAVIER" code messages relating to flying bomb activity

  Held by

  The National Archives, Kew

  Date

  1944 July 7 -21

  Reference

  HW 5/727