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• Reports in the series MKA/501 to MKA/1000.

  Held by

  The National Archives

  Date

  1942 Jul 29-1942 Aug 05

  Reference

  HW 20/26

• Decrypts of Japanese army and army air force messages

  Held by

  The National Archives, Kew

  Date

  1944 Sep 01-1945 Feb 28

  Reference

  HW 52/26

• Reports of Japanese naval air decrypts

  Held by

  The National Archives, Kew

  Date

  1944 Aug 12-1945 Mar 05

  Reference

  HW 27/26

• Report of visit to RAF Cheadle and GC & CS

  Held by

  The National Archives, Kew

  Date

  1940 Apr 08-1940 May 11

  Reference

  HW 2/26

• GCCS staff strength in Dec 1941 with true establishment figures by section compared...

  Held by

  The National Archives, Kew

  Date

  1942 Jan 1-15

  Reference

  HW 14/26

• Far East D/F Organisation Intelligence Summary

  Held by

  The National Archives, Kew

  Date

  1940 Aug- 1942 Mar

  Reference

  HW 4/26

• Japanese naval decrypts

  Held by

  The National Archives, Kew

  Date

  1943 Jul 21-1943 Jul 31

  Reference

  HW 23/26

• German codebook number 3512

  Held by

  The National Archives, Kew

  Date

  [c1910]

  Reference

  HW 7/26

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

  Held by

  The National Archives, Kew

  Date

  1943 June-July

  Reference

  HW 16/26

• Vol. XIII The German Navy - Surface and Air Forces, Flotillas and Units

  Held by

  The National Archives, Kew

  Date

  1939 - 1945

  Reference

  HW 11/26

• Spanish military traffic

  Held by

  The National Archives, Kew

  Date

  1943 Aug 18-1945 May 03

  Reference

  HW 22/26

• Reporting shortage of GAF ground support staff in North African post. Suspected minefield...

  Held by

  The National Archives, Kew

  Date

  1941 Aug 26

  Reference

  HW 1/26

• India 'Y' 1938-1941 Notes by Lt Col Dagg. Notes on the army Sigint organisation in...

  Held by

  The National Archives, Kew

  Date

  1938 Jan 01 - 1941 Feb 28

  Reference

  HW 50/26

• Japanese denial of peace overtures. Japan: 142878, 142957

  Held by

  The National Archives, Kew

  Date

  [1945 Mar 16-1945 Mar 31]

  Reference

  HW 12/311/26

• Moscow message serials: 57-58, 62-68, 81-83, 86-90. Spanish message serials: 83-87,...

  Held by

  The National Archives, Kew

  Date

  1936 Mar

  Reference

  HW 17/26/17

• Moscow message serials: 18-19, 32-44, 46-52, 55-56, 53-54. Spanish message serials:...

  Held by

  The National Archives, Kew

  Date

  1936 Feb

  Reference

  HW 17/26/16

• Moscow message serials: 8, 11?, 10, 12-13, 17-18.

  Held by

  The National Archives, Kew

  Date

  1934 Apr

  Reference

  HW 17/26/5

• Moscow message serials: 4, 7.

  Held by

  The National Archives, Kew

  Date

  1934 Mar

  Reference

  HW 17/26/4

• Moscow message serials: 10-14, 16, 21-27, 29, 31-32, 2.

  Held by

  The National Archives, Kew

  Date

  1934 Feb

  Reference

  HW 17/26/3

• Moscow message serials: 91, 93-97, 101-107, 109-110, 115, 117-122, 124, 127,. Moscow...

  Held by

  The National Archives, Kew

  Date

  1934 Oct

  Reference

  HW 17/26/8