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• ULTRA/AND/MSD. HMS Anderson military signals intelligence digest

  Held by

  The National Archives, Kew

  Date

  1945 Aug 22-28

  Reference

  HW 4/22

• The Indian Y plan describing the organisation of Indian signals intelligence

  Held by

  The National Archives, Kew

  Date

  1942 Mar 01 - 1942 Jun 30

  Reference

  HW 61/22

• Naval accommodation and staffing at Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1939 Nov 10 - 1945 Oct 12

  Reference

  HW 64/22

• Papers relating to the Administrative and AT Subcommittees Minutes of meetings of...

  Held by

  The National Archives, Kew

  Date

  1941 Apr 02-1943 Oct 13

  Reference

  HW 42/22

• Commercial reports

  Held by

  The National Archives, Kew

  Date

  1940 Mar 30-1940 Mar 30

  Reference

  HW 29/22

• Security of electronic communications

  Held by

  Creating government department or its successor

  Date

  1955 Dec-1964 Oct

  Reference

  HW 9/22

• German section: reports of German army and air force high grade machine decrypts

  Held by

  The National Archives, Kew

  Date

  July 2 1941-July 13 1941

  Reference

  HW 5/22

• Noise Investigation Bureau. Reports on the interception and analysis of enemy transmissions...

  Held by

  The National Archives, Kew

  Date

  1942 Jan 13 - 1943 Dec 31

  Reference

  HW 62/22

• Vol. IX The German Navy - The U-boat Arm Commanders

  Held by

  The National Archives, Kew

  Date

  1939 - 1945

  Reference

  HW 11/22

• Decrypts of Comintern messages: Moscow, USSR, with London, Great Britain. (Described...

  Held by

  The National Archives, Kew

  Date

  1936 June-1937 Jan

  Reference

  HW 17/22

• Air Staff Intelligence reports on the Spanish Civil War

  Held by

  The National Archives, Kew

  Date

  1938 Mar 07-1939 Apr 02

  Reference

  HW 22/3

• Spanish naval order of battle

  Held by

  The National Archives, Kew

  Date

  1942 Nov 01-1942 Nov 30

  Reference

  HW 22/8

• Spanish naval messages

  Held by

  The National Archives, Kew

  Date

  1942 Nov 05-1943 May 12

  Reference

  HW 22/10

• Spanish naval messages and callsigns

  Held by

  The National Archives, Kew

  Date

  1941 Jun 18-1943 Dec 28

  Reference

  HW 22/17

• Spanish naval messages

  Held by

  The National Archives, Kew

  Date

  1943 Aug 03-1944 Jun 27

  Reference

  HW 22/16

• Spanish naval messages

  Held by

  The National Archives, Kew

  Date

  1944 Mar 22-1944 Aug 01

  Reference

  HW 22/13

• Spanish naval messages

  Held by

  The National Archives, Kew

  Date

  1944 Aug 01-1945 May 13

  Reference

  HW 22/14

• Spanish naval messages

  Held by

  The National Archives, Kew

  Date

  1943 May 12-1943 Oct 13

  Reference

  HW 22/11

• Spanish naval messages and callsigns (SS zip 201-299)

  Held by

  The National Archives, Kew

  Date

  1945 May 24-1945 Sep 20

  Reference

  HW 22/19

• Reports on the Spanish army, Spanish naval callsigns and results of RAF bombing raid...

  Held by

  The National Archives, Kew

  Date

  1941 Oct 31-1945 May 19

  Reference

  HW 22/24