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• Includes German Naval report of damage to GNEISENAU during air-raid April 14,

  Held by

  The National Archives, Kew

  Date

  July 28 1941-Aug 5 1941

  Reference

  HW 5/25

• Relations with Y Stations. Notes on the relationship between Naval Section and the...

  Held by

  The National Archives, Kew

  Date

  1941 Aug 21 - 1944 Apr 28

  Reference

  HW 50/15/3

• Teleprinted translations of decrypted Second World War German U-boat (or U-boat command)...

  Held by

  The National Archives, Kew

  Date

  1943 Dec 1-1944 Feb 3

  Reference

  HW 18/271

• Gp Capt Jones' draft letter from EWT to Gen McDonald of USSTAFE Feb 19 requesting...

  Held by

  The National Archives, Kew

  Date

  1945 Feb 16-28

  Reference

  HW 14/122

• The Japanese Minor General Purpose System (J.N.20) by Mr A.R. Davis. An account of...

  Held by

  The National Archives, Kew

  Date

  1940 Jun 01-1945 Jul 31

  Reference

  HW 8/64

• Teleprinted translations of decrypted Second World War German U-boat (or U-boat command)...

  Held by

  The National Archives, Kew

  Date

  1942 Nov 1-1944 Jan 26

  Reference

  HW 18/252

• Teleprinted translations of decrypted Second World War German U-boat (or U-boat command)...

  Held by

  The National Archives, Kew

  Date

  1944 Oct 2-1945 May 12

  Reference

  HW 18/286

• Decrypts of Japanese army and army air force messages

  Held by

  The National Archives, Kew

  Date

  1944 Dec 24-1945 Feb 28

  Reference

  HW 41/177

• EWT to C Sept 1 reporting cypher change by GP from double Playfair to Raster stencil...

  Held by

  The National Archives, Kew

  Date

  1944 Sept 1-15

  Reference

  HW 14/111

• North Africa: GAF summary of operations of Oct 26, Allied attack area west of Alamein;...

  Held by

  The National Archives, Kew

  Date

  1942 Oct 27

  Reference

  HW 1/1015

• Traffic analysis report on Japanese army communications

  Held by

  The National Archives, Kew

  Date

  1945 Aug 20 - 1945 Aug 28

  Reference

  HW 41/328

• 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

• Sigint Board, Jan - June 1945 - minutes of meetings and other papers Subjects discussed...

  Held by

  The National Archives, Kew

  Date

  1945 Jan 01-1945 Jun 28

  Reference

  HW 42/14

• Teleprinted translations of decrypted Second World War German U-boat (or U-boat command)...

  Held by

  The National Archives, Kew

  Date

  1944 Feb 18-1945 Apr 28

  Reference

  HW 18/275

• Teleprinted translations of decrypted Second World War German U-boat (or U-boat command)...

  Held by

  The National Archives, Kew

  Date

  1942 Jan 30-1943 Sep 16

  Reference

  HW 18/247

• North Africa: Hitler orders all available fighting personnel and weapons of all branches...

  Held by

  The National Archives, Kew

  Date

  1942 Nov 30

  Reference

  HW 1/1176

• M/S note from FL Lucas to EWT Mar 16 on threat of German attacks on British airfields...

  Held by

  The National Archives, Kew

  Date

  1945 Mar 16-31

  Reference

  HW 14/124

• J1624/T28 to DNI (see 1283). Mediterranean: two GAF anti-shipping units transfer...

  Held by

  The National Archives, Kew

  Date

  1942 Nov 4

  Reference

  HW 1/1044

• 3001-5000: 3020: Inquires concerning relations of Lore WOLK (Probable alias Irma...

  Held by

  The National Archives, Kew

  Date

  1943 Jan 08-1943 Jul 28

  Reference

  HW 19/236

• North Africa: Rommel's reply Nov 26 to Cavallero's request for a detailed investigation...

  Held by

  The National Archives, Kew

  Date

  1942 Nov 28

  Reference

  HW 1/1171