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• Accessions administration: HW 26

  Held by

  The National Archives, Kew

  Date

  2000 Jan 1 - 2000 Dec 31

  Reference

  PRO 57/15757

• R342612 COLE HW 26/08/1929 KENT

  Held by

  The National Archives, Kew

  Date

  1913-1972

  Reference

  BT 372/896/16

• General records of the Government Code and Cypher School

  Held by

  Date

  1914-1979

  Reference

• New York: Proposed use of MIKhAJLOV's telephone.. See also No 1516 of 1944 Oct 4,...

  Held by

  The National Archives, Kew

  Date

  1945 Jan 8

  Reference

  HW 15/28/12

• Government Code and Cypher School: Military Section: Reports of Croatian Military...

  Held by

  The National Archives, Kew

  Date

  1944-1945

  Reference

  HW 26

• New York: 1. Answer to criticism by Moscow of delay in replying to telegrams and...

  Held by

  The National Archives, Kew

  Date

  1944 Sept 18

  Reference

  HW 15/26/26

• Centralised DF coordination centred on Bletchley Park, including minutes of DF Coordinating...

  Held by

  The National Archives, Kew

  Date

  1942 Mar 07-1944 May 16

  Reference

  HW 42/26

• Naval Miscellaneous Papers July-December 1942 These papers, collected by Frank Birch,...

  Held by

  The National Archives, Kew

  Date

  1942 Jul 01-1942 Dec 31

  Reference

  HW 8/26

• Reports concerning the results of air attacks on German convoys based on interception...

  Held by

  The National Archives, Kew

  Date

  1941 Aug 29-1941 Oct 17

  Reference

  HW 41/26

• Other Allied transmitters in UK

  Held by

  The National Archives, Kew

  Date

  1942 Feb 10-1946 Jan 11

  Reference

  HW 34/26

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

  Held by

  The National Archives, Kew

  Date

  1944 Jan 1-1944 Dec 31

  Reference

  HW 15/26

• Decrypts of intercepted diplomatic communications. Afghanistan: 7869. Argentina:...

  Held by

  The National Archives, Kew

  Date

  1921 Sept

  Reference

  HW 12/26

• German naval movements and engagements

  Held by

  The National Archives, Kew

  Date

  1942 Apr 01-1942 May 31

  Reference

  HW 18/26

• Call-up deferments and exemptons for Bletchley Park staff

  Held by

  The National Archives, Kew

  Date

  1940 Feb 05 - 1942 Mar 19

  Reference

  HW 64/26

• Movement of Croatian officer

  Held by

  The National Archives, Kew

  Date

  1944 Dec 01

  Reference

  HW 26/5

• Postcard, postmarked July 8, from Naval Section GCCS to Clarke's secretary, Miss...

  Held by

  The National Archives, Kew

  Date

  1927

  Reference

  HW 3/26

• Including request to Spanish War Office for specialist personnel to be included in...

  Held by

  The National Archives, Kew

  Date

  Aug 5 1941-Aug 15 1941

  Reference

  HW 5/26

• GC&CS miscellaneous papers: Published Serials 1943-1945. Address lists and other...

  Held by

  The National Archives, Kew

  Date

  1943 Jan 01 - 1945 Sep 30

  Reference

  HW 62/26

• More on ground support operations by units in Libya. Report of French air raid on...

  Held by

  The National Archives, Kew

  Date

  1940 Sept 29-1940 Nov 5

  Reference

  HW 21/26

• Reports of decrypts of Japanese military attachés messages

  Held by

  The National Archives, Kew

  Date

  1944 Mar 23-1944 Mar 26

  Reference

  HW 35/26