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  Piece

  German naval fuel shortages

  German naval fuel shortages

  Held by

  The National Archives, Kew

  Date

  1942 Apr 01-1945 Apr 30

  Reference

  HW 18/28

• Catalogue level

  Piece

  Government Code and Cypher School: Far East diplomatic summaries

  Government Code and Cypher School: Far East diplomatic summaries

  Held by

  The National Archives, Kew

  Date

  1945 Apr 6-Nov 19

  Reference

  HW 10/1

• Catalogue level

  Piece

  Missing serials can be found in DEFE 3/38

  Missing serials can be found in DEFE 3/38

  Held by

  The National Archives

  Date

  1944 Apr 11-1944 Apr 14

  Reference

  HW 20/222

• Catalogue level

  Piece

  Correspondence passing between Service Ministries and overseas commands via Bletchley...

  Signals passed from Ministries to Washington via GC & CS containing appreciations on the German Air Force based on Sigint

  Held by

  The National Archives

  Date

  1944 Jul 21-1944 Oct 19

  Reference

  HW 20/515

• Catalogue level

  Piece

  Correspondence passing between Service Ministries and overseas commands via Bletchley...

  Signals passed from Ministries to Washington via GC & CS containing appreciations on the German Air Force based on Sigint

  Held by

  The National Archives

  Date

  1944 Oct 20-1945 Jan 07

  Reference

  HW 20/516

• Catalogue level

  Piece

  Correspondence passing between Service Ministries and overseas commands via Bletchley...

  Messages from Signals Liaison Unit (SLU) 1, Algiers, passed via GC & CS to Malta and Cairo Both series incomplete, but missing serials may have been sent to the War Office or Air Ministry and filed with the GAD series

  Held by

  The National Archives

  Date

  1943 Feb 08-1943 Jun 24

  Reference

  HW 20/535

• Catalogue level

  Piece

  Allied Sigint Policy and Organisation by Nigel de Grey. Chapter VII India and the...

  I Australia (1-49), Part II New Zealand (pages 54), Part III Canada (pages 55-73); Chapter IX The American Alliance (pages 1-100); Chapter X, Part I French Liaison (pages 1-16), Part II Russian Liaison (pages 17-30), Part III Other Allies (pages 31-3…

  Held by

  The National Archives, Kew

  Date

  1914 Aug 01-1945 Aug 30

  Reference

  HW 43/78

• Catalogue level

  Piece

  Correspondence passing between Service Ministries and overseas commands via Bletchley...

  Messages from Signals Liaison Unit (SLU) 1, Algiers, passed via GC & CS to other SLU stations serving Mediterranean Commands.

  Held by

  The National Archives

  Date

  1943 Sep 08-1943 Nov 04

  Reference

  HW 20/537

• Catalogue level

  Piece

  Decrypts of intercepted diplomatic communications: International Naval Conference...

  United States: NC33-34, 38, 56, 62-63, 68-69, 74-75, 79-80, 82-84, 91, 100-101, 109, 115-116, 119, 125-131, 133, 138-140, 142, 145-147, 150, 152-153, 158, 162-163, 166-168, 171-172, 174, 188, 203, 205, 210-211, 215-217, 226,

  Held by

  The National Archives, Kew

  Date

  1930 Jan 23-1930 Apr 30

  Reference

  HW 12/126

• Catalogue level

  Piece

  Three monthly report issued by the main British army signals intelligence station...

  Three monthly report issued by the main British army signals intelligence station at Chatham describing the interception of Japanese and Italian communications

  Held by

  The National Archives, Kew

  Date

  1938 Jan 01 - 1938 Mar 31

  Reference

  HW 41/255

• Catalogue level

  Piece

  Reports on USSR military and civil activity: including Dal'stroj labour and finance,...

  Reports on USSR military and civil activity: including Dal'stroj labour and finance, Dal'stroj reference numbers and personalities, 13 and 38 Armies, unidentified corps at Pskov, senior Army officers, Civil Air Fleet, location

  Held by

  The National Archives, Kew

  Date

  1948 Jan 14 - 1948 Feb 24

  Reference

  HW 75/306

• Catalogue level

  Piece

  Japanese ship movements

  Japanese ship movements

  Held by

  The National Archives, Kew

  Date

  1943 Jun 09-1943 Sep 09

  Reference

  HW 23/811

• Catalogue level

  Piece

  Verbatim German language message texts in GP Roulette Code

  Verbatim German language message texts in GP Roulette Code

  Held by

  The National Archives, Kew

  Date

  1944 Apr-Nov

  Reference

  HW 16/48

• Catalogue level

  Piece

  Weekly reports on GAF operations in the Mediterranean

  Weekly reports on GAF operations in the Mediterranean

  Held by

  The National Archives, Kew

  Date

  1942 Sept 9-1943 June 4

  Reference

  HW 13/145

• Catalogue level

  Piece

  Bound volume of BP GP periodic summaries: reports 27-40 include details of massed...

  reported mass executions in Kremenchug during night of Oct 30/31 1941; MSGP 35 and 36 report GP reprisals on Eastern Front, fire, pillage and executions Apr-June 1942; MSGP 37 reported 700 Jews incapable of work shot in Ukraine July 1942; appendix to…

  Held by

  The National Archives, Kew

  Date

  1940-1945

  Reference

  HW 16/6

• Catalogue level

  Series

  Government Code and Cypher School: Cryptographic Studies

  At the end of the Second World War histories were written of various aspects of the work of the Bletchley Park organisation. Records in the series include volumes covering the breaking of two of the major cypher systems used by the enemy - ENIGMA and…

  Held by

  The National Archives, Kew

  Date

  1920-1978

  Reference

  HW 25