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• Catalogue level

  Division

  General records of the Government Code and Cypher School

  and earlier papers on Japanese matters HW 67.

  Held by

  Date

  1914-1979

  Reference

• Catalogue level

  Series

  Government Code and Cypher School: Signals Intelligence on Japanese Communications

  This series contains records relating to the interception and decyphering of Japanese military, naval and diplomatic communications.

  Held by

  The National Archives, Kew

  Date

  1928-1945

  Reference

  HW 67

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1945 Jul 01 - 1945 Nov 06

  Reference

  HW 67/13

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1944 Jul 01 - 1944 Sep 30

  Reference

  HW 67/9

• Catalogue level

  Piece

  Report on the Japanese Commercial Section 1942-1945. Report on the work of the Japanese...

  Report on the Japanese Commercial Section 1942-1945. Report on the work of the Japanese section dealing with commercial telegrams at Alford House, London

  Held by

  The National Archives, Kew

  Date

  1938 Jan 01 - 1945 Aug 30

  Reference

  HW 43/67

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1944 Oct 01 - 1944 Dec 31

  Reference

  HW 67/10

• Catalogue level

  Piece

  Signals fom RAF 276 Wing Cairo to GC and CS (Air Section) concerning Italian air...

  Signals fom RAF 276 Wing Cairo to GC and CS (Air Section) concerning Italian air force activity

  Held by

  The National Archives, Kew

  Date

  1942 Sep 04-1943 Oct 04

  Reference

  HW 41/67

• Catalogue level

  Piece

  Reports in the series VM/2251 to VM/2500.

  Reports in the series VM/2251 to VM/2500.

  Held by

  The National Archives

  Date

  1943 Jan 24-1943 Jan 27

  Reference

  HW 20/67

• Catalogue level

  Piece

  Decrypts of intercepted diplomatic communications. Afghanistan: 19512, 19547, 19605-19607,...

  Decrypts of intercepted diplomatic communications. Afghanistan: 19512, 19547, 19605-19607, 19758. Argentina: 19508, 19667, 19695. Belgium: 19488, 19497, 19616. Chile: 19523, 19558, (see Italy 19567), 19600-19602, 19620, 19631, 19694. Columbia: 19813.…

  Held by

  The National Archives, Kew

  Date

  1925 Feb

  Reference

  HW 12/67

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1944 Apr 01 - 1944 Jun 30

  Reference

  HW 67/8

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1943 Oct 01 - 1943 Dec 31

  Reference

  HW 67/6

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1944 Jan 01 - 1944 Mar 31

  Reference

  HW 67/7

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1942 Jul 01 - 1942 Dec 31

  Reference

  HW 67/4

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1939 Sep 01 - 1941 Dec 31

  Reference

  HW 67/2

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1945 Jan 01 - 1945 Mar 31

  Reference

  HW 67/11

• Catalogue level

  Piece

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

  Japanese communcations: messages and reports concerned with intercept, analysis and code breaking

  Held by

  The National Archives, Kew

  Date

  1943 Jan 01 - 1943 Sep 30

  Reference

  HW 67/5

• Catalogue level

  Piece

  Decisions of Signal Intelligence Board on signal intelligence against Japan

  Decisions of Signal Intelligence Board on signal intelligence against Japan

  Held by

  The National Archives, Kew

  Date

  1944 Jun 12 - 1944 Aug 17

  Reference

  HW 67/17

• Catalogue level

  Piece

  Staff matters at Bletchley Park including recruitment, pay and leave

  Staff matters at Bletchley Park including recruitment, pay and leave

  Held by

  The National Archives, Kew

  Date

  1941 Apr 28 - 1945 Apr 06

  Reference

  HW 64/67

• Catalogue level

  Piece

  Commercial reports

  Commercial reports

  Held by

  The National Archives, Kew

  Date

  1940 Nov 27-1940 Nov 28

  Reference

  HW 29/67

• Catalogue level

  Piece

  GCCS Senior and Junior Assistants still pressing for improved pay and conditions

  GCCS Senior and Junior Assistants still pressing for improved pay and conditions

  Held by

  The National Archives, Kew

  Date

  1937

  Reference

  HW 3/67