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  General records of the Government Code and Cypher School

  class="ref" href="HW-d1-c18">HW 18; German plans for sea-born invasion of Britain HW 48; Hut 6 and Hut 8 weekly reports HW 77.

  Held by

  Date

  1914-1979

  Reference

• Catalogue level

  Series

  Government Code and Cypher School: Weekly Reports

  Reports made on a weekly basis of the activities of the following Huts at the Government Code and Cypher School at Bletchley Park: Hut 3 - This hut housed the main reporting section, they translated and compiled the intelligence reports. Hut 6 - This…

  Held by

  The National Archives, Kew

  Date

  1941-1945

  Reference

  HW 77

• Catalogue level

  Piece

  Japanese Naval/Air-Ground Sigint. Historical notes on the collection and processing...

  Japanese Naval/Air-Ground Sigint. Historical notes on the collection and processing of the communications of Japanese naval aircraft

  Held by

  The National Archives, Kew

  Date

  1943 Apr 11 - 1945 Aug 26

  Reference

  HW 50/77

• Catalogue level

  Piece

  Enemy exploitation of codes and cyphers of various UK Government Departments: miscellaneous...

  Enemy exploitation of codes and cyphers of various UK Government Departments: miscellaneous reports and correspondence

  Held by

  The National Archives, Kew

  Date

  1943 Oct 27 - 1945 Feb 15

  Reference

  HW 40/77

• Catalogue level

  Piece

  Yugoslav Army Field Post Number messages. Yugoslav Navy messages mainly concerned...

  Yugoslav Army Field Post Number messages. Yugoslav Navy messages mainly concerned with the movements of motor gunboats. Yugoslav Air Force messages concerning aircraft types, numbers and Air Force personalities. Messages passed on W/T network serving…

  Held by

  The National Archives, Kew

  Date

  1948 Jul 15 - 1949 Jan 04

  Reference

  HW 75/77

• Catalogue level

  Piece

  Decrypts of intercepted diplomatic communications. Afghanistan: 22007. Brazil: 21920,...

  Decrypts of intercepted diplomatic communications. Afghanistan: 22007. Brazil: 21920, 21997, 22014. Chile: 21939. Egypt: 21894, 21955. France: 21862, 21872, 21893, 21911-21912, 21923, 21942-21943, 21954, 21987, 22020, 22025. Germany: 21870, 21910. Gr…

  Held by

  The National Archives, Kew

  Date

  1925 Dec

  Reference

  HW 12/77

• Catalogue level

  Piece

  Hut 3 weekly reports: Nos 1-117

  Hut 3 weekly reports: Nos 1-117

  Held by

  The National Archives, Kew

  Date

  1943 Feb 23 - 1945 May 05

  Reference

  HW 77/11

• Catalogue level

  Piece

  Block C (Freeborn) weekly reports: produced by Frederic Freeborn's Hollerith Machine...

  Block C (Freeborn) weekly reports: produced by Frederic Freeborn's Hollerith Machine Tabulating Section (moved from Hut 7 to Block C in November 1942)

  Held by

  The National Archives, Kew

  Date

  1943 Feb 25 - 1945 Jul 02

  Reference

  HW 77/10

• Catalogue level

  Piece

  Hut 6 weekly reports, part III

  Hut 6 weekly reports, part III

  Held by

  The National Archives, Kew

  Date

  1943 Jan 02 - 1943 Jun 25

  Reference

  HW 77/14

• Catalogue level

  Piece

  Cryptographic Co-ordination and Records Section (CCR) weekly reports

  Cryptographic Co-ordination and Records Section (CCR) weekly reports

  Held by

  The National Archives, Kew

  Date

  1943 Feb 27 - 1945 Aug 25

  Reference

  HW 77/20

• Catalogue level

  Piece

  Hut 6 weekly reports, part III

  Hut 6 weekly reports, part III

  Held by

  The National Archives, Kew

  Date

  1943 Jul 02 - 1943 Sep 25

  Reference

  HW 77/15

• Catalogue level

  Piece

  Hut 6 weekly reports, parts I and II

  Hut 6 weekly reports, parts I and II

  Held by

  The National Archives, Kew

  Date

  1941 Sep 07 - 1943 Dec 25

  Reference

  HW 77/12

• Catalogue level

  Piece

  Establishment and finance

  Establishment and finance

  Held by

  Creating government department or its successor

  Date

  1939-1943

  Reference

  HW 3/77

• Catalogue level

  Piece

  Allied Sigint Policy and Organisation by Nigel de Grey. Chapter V The Service Ministries;...

  Allied Sigint Policy and Organisation by Nigel de Grey. Chapter V The Service Ministries; Part I Admiralty (pages 1-52), Part II War Office (pages 53-101), Part III Air Ministry (pages 102-132); Chapter VI The Mediterranean Campaign (pages 1-204)

  Held by

  The National Archives, Kew

  Date

  1914 Aug 01-1945 Aug 30

  Reference

  HW 43/77

• Catalogue level

  Piece

  Decrypts of medium/low grade German naval cipher messages

  Decrypts of medium/low grade German naval cipher messages

  Held by

  The National Archives, Kew

  Date

  1944 Jan 31-1944 Apr 22

  Reference

  HW 18/77

• Catalogue level

  Piece

  Signal from the RAF base in Algiers concerning enemy aircraft activity and administrative...

  Signal from the RAF base in Algiers concerning enemy aircraft activity and administrative matters

  Held by

  The National Archives, Kew

  Date

  1943 Sep 01-1943 Nov 30

  Reference

  HW 41/77

• Catalogue level

  Piece

  Naval Enigma Processing Section Hut 8 weekly reports 1945

  Naval Enigma Processing Section Hut 8 weekly reports 1945

  Held by

  The National Archives, Kew

  Date

  1944 Dec 31 - 1945 May 19

  Reference

  HW 77/9

• Catalogue level

  Piece

  Army and Air Force Enigma Processing Section Hut 6 weekly reports Parts I, II January...

  Army and Air Force Enigma Processing Section Hut 6 weekly reports Parts I, II January 1944 - April 1945

  Held by

  The National Archives, Kew

  Date

  1944 Jan 01 - 1945 May 05

  Reference

  HW 77/1

• Catalogue level

  Piece

  Army and Air Force Enigma Processing Section Hut 6 weekly reports Part III October...

  Army and Air Force Enigma Processing Section Hut 6 weekly reports Part III October 1944 - May 1945

  Held by

  The National Archives, Kew

  Date

  1944 Aug 07 - 1945 May 05

  Reference

  HW 77/6

• Catalogue level

  Piece

  Army and Air Force Enigma Processing Section Hut 6 weekly reports Part III August...

  Army and Air Force Enigma Processing Section Hut 6 weekly reports Part III August - September 1944

  Held by

  The National Archives, Kew

  Date

  1944 Aug 05 - 1944 Sep 30

  Reference

  HW 77/5