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• Catalogue level

  Piece

  Accessions administration: HW 27

  Accessions administration: HW 27

  Held by

  The National Archives, Kew

  Date

  2000 Jan 1 - 2002 Dec 31

  Reference

  PRO 57/15758

• Catalogue level

  Item

  See HW 15/33 1944 Dec 27

  See HW 15/33 1944 Dec 27

  Held by

  The National Archives, Kew

  Date

  1945 Jan 31-1945 Feb 1

  Reference

  HW 15/34/7

• Catalogue level

  Item

  See HW 15/33 1944 Dec 27

  See HW 15/33 1944 Dec 27

  Held by

  The National Archives, Kew

  Date

  1945 Feb 9

  Reference

  HW 15/34/8

• Catalogue level

  Division

  General records of the Government Code and Cypher School

  JAPANESE MILITARY COMMUNICATIONS: Japanese naval decrypts HW 23, naval air decrypts HW 27, army airforce decrypts HW 28

  Held by

  Date

  1914-1979

  Reference

• Catalogue level

  Item

  See HW 15/33, 1944 Dec...

  See HW 15/33, 1944 Dec 27

  Held by

  The National Archives, Kew

  Date

  1945 Jan 13

  Reference

  HW 15/34/3

• Catalogue level

  Series

  Government Code and Cypher School: Naval Section and Air Section: Reports based on...

  This series contains reports from the Naval and Air Sections based on Japanese naval air force decrypts. The reports contain information on Japanese naval air force operational and administrative matters.

  Held by

  The National Archives, Kew

  Date

  1943-1945

  Reference

  HW 27

• Catalogue level

  Piece

  Reports of Japanese naval air decrypts

  Reports of Japanese naval air decrypts

  Held by

  The National Archives, Kew

  Date

  1944 Sep 01-1945 Mar 19

  Reference

  HW 27/27

• Catalogue level

  Item

  "AKIM's" wife's desire to go back to the Soviet Union. 1. New York.

  "AKIM's" wife's desire to go back to the Soviet Union. 1. New York.

  Held by

  The National Archives, Kew

  Date

  1944 Nov 21

  Reference

  HW 15/27/27

• Catalogue level

  Piece

  Reports of Japanese naval air decrypts

  Reports of Japanese naval air decrypts

  Held by

  The National Archives, Kew

  Date

  1944 Mar 22-1944 Sep 30

  Reference

  HW 27/13

• Catalogue level

  Piece

  Reports of Japanese naval air decrypts

  Reports of Japanese naval air decrypts

  Held by

  The National Archives, Kew

  Date

  1945 May 19-1945 Jul 17

  Reference

  HW 27/41

• Catalogue level

  Piece

  GC&CS Naval Cryptanalytic Studies Volume II: The German Steckered Enigma I by M A...

  GC&CS Naval Cryptanalytic Studies Volume II: The German Steckered Enigma I by M A Ashcroft, D W Babbage, M A Chamberlain, O H Lawn, A P Mahon, D R Nichol, R G Pendered and A L Yoxall

  Held by

  Creating government department or its successor

  Date

  1939 Sep 01 - 1945 Aug 30

  Reference

  HW 43/27

• Catalogue level

  Piece

  Exploitation of Russian Military communications

  Exploitation of Russian Military communications

  Held by

  Creating government department or its successor

  Date

  1946 Apr 01 - 1949 Jun 24

  Reference

  HW 40/27

• Catalogue level

  Piece

  Note on the organisational data concerning the Japanese naval air force submitted...

  Note on the organisational data concerning the Japanese naval air force submitted by the Japanese surrender mission at Manila, Philippines

  Held by

  The National Archives, Kew

  Date

  1945 Aug 19-1945 Aug 19

  Reference

  HW 27/59

• Catalogue level

  Piece

  Decrypts of Japanese army and army air force messages

  Decrypts of Japanese army and army air force messages

  Held by

  The National Archives, Kew

  Date

  1944 Sep 01-1945 Feb 28

  Reference

  HW 52/27

• Catalogue level

  Piece

  Naval Miscellaneous Papers January-April 1943 These papers, collected by Frank Birch,...

  Naval Miscellaneous Papers January-April 1943These papers, collected by Frank Birch, Head of Naval Section, reflect the daily operations and changing organisation of Naval Section. 16/2/1943 U559 Enigma.4/1/1943 Turning points in Enigma history (2 pa…

  Held by

  The National Archives, Kew

  Date

  1943 Jan 01-1943 Apr 30

  Reference

  HW 8/27

• Catalogue level

  Piece

  Decrypts of intercepted diplomatic communications. Afghanistan: 8107, 8141-8144,...

  Decrypts of intercepted diplomatic communications. Afghanistan: 8107, 8141-8144, 8160, 8212-8213, 8279, 8293. Argentina: 8048. Germany: 8030, 8050. Greece: 8016-8017, 8024-8025, 8031-8039, 8051-8056, 8064-8070, 8075-8078, 8091-8094, 8099-8101, 8113-8…

  Held by

  The National Archives, Kew

  Date

  1921 Oct

  Reference

  HW 12/27

• Catalogue level

  Piece

  Signals intelligence co-operation with Russia

  Signals intelligence co-operation with Russia

  Held by

  The National Archives, Kew

  Date

  1942 Jan 01 - 1943 Dec 31

  Reference

  HW 61/27

• Catalogue level

  Piece

  Signals to RAF delegation in Washington from GC&CS concerning Japanese naval air...

  Signals to RAF delegation in Washington from GC&CS concerning Japanese naval air and army air orders of battles

  Held by

  The National Archives, Kew

  Date

  1944 Mar 12 - 1944 Mar 13

  Reference

  HW 27/64

• Catalogue level

  Piece

  CPB: agendas/minutes of meetings and reports.

  CPB: agendas/minutes of meetings and reports.

  Held by

  The National Archives, Kew

  Date

  1944 June-1950 July

  Reference

  HW 9/27

• Catalogue level

  Piece

  Note on two tables of the Japanese army air force chain of command submitted by the...

  Note on two tables of the Japanese army air force chain of command submitted by the Japanese surrender mission at Manila, Philippines

  Held by

  The National Archives, Kew

  Date

  1945 Aug 19-1945 Aug 19

  Reference

  HW 27/60