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  Piece

  Naval Section daily bulletins

  Naval Section daily bulletins

  Held by

  The National Archives, Kew

  Date

  1945 July 1 - Oct 14

  Reference

  HW 8/7

• Catalogue level

  Piece

  NASD.HMS Anderson: Japanese naval air

  NASD.HMS Anderson: Japanese naval air

  Held by

  The National Archives, Kew

  Date

  1945 Feb 8-Mar 3

  Reference

  HW 4/7

• Catalogue level

  Piece

  Brief history of the Air Monitoring Centre; Royal Naval personnel attached to RAF...

  Brief history of the Air Monitoring Centre; Royal Naval personnel attached to RAF Cheadle; RAF "Y" Service in the Mediterranean, Jan 1941 - Jan 1944

  Held by

  The National Archives, Kew

  Date

  1943-1946

  Reference

  HW 2/7

• Catalogue level

  Piece

  Decrypts of Comintern messages: Moscow, USSR, with Prague, Czechoslovakia. (Described...

  Decrypts of Comintern messages: Moscow, USSR, with Prague, Czechoslovakia. (Described at item level)

  Held by

  The National Archives, Kew

  Date

  1936 Jan-1936 June

  Reference

  HW 17/7

• Catalogue level

  Piece

  Intelligence reports on foreign air forces. (Described at item level)

  Intelligence reports on foreign air forces. (Described at item level)

  Held by

  The National Archives, Kew

  Date

  1938 Oct 21-1939 Jan 10

  Reference

  HW 21/7

• Catalogue level

  Piece

  Comments on Sigint log maintained by HMS Glasgow when operating in waters of the...

  Comments on Sigint log maintained by HMS Glasgow when operating in waters of the Falklands and South America, 1914-1915; [intercept log missing at transfer]

  Held by

  The National Archives, Kew

  Date

  [1919]

  Reference

  HW 3/7

• Catalogue level

  Piece

  Reports of decrypts of Japanese military attachés messages

  Reports of decrypts of Japanese military attachés messages

  Held by

  The National Archives, Kew

  Date

  1943 May 13-1943 Jun 06

  Reference

  HW 35/7

• Catalogue level

  Piece

  This folder contains mainly typescripts of decrypted messages in the original German....

  Also included in the folder are some related reports (113470, 115451, 115452 & 121662) issued in the BJ Series (HW 12).

  Held by

  The National Archives, Kew

  Date

  1942 Jul 14-1943 Aug 23

  Reference

  HW 36/7

• Catalogue level

  Piece

  Operating instructions for the Glow Lamp Ciphering Machine 'ENIGMA'. This document...

  Operating instructions for the Glow Lamp Ciphering Machine 'ENIGMA'. This document is undated but is thought to have been produced in the mid-1920s

  Held by

  The National Archives, Kew

  Date

  1923 Jan 01-1927 Dec 31

  Reference

  HW 25/7

• Catalogue level

  Piece

  Commercial messages passed over diplomatic channels

  Commercial messages passed over diplomatic channels

  Held by

  The National Archives, Kew

  Date

  1942 Sep 01-1942 Sep 30

  Reference

  HW 32/7

• Catalogue level

  Piece

  Summaries describing enemy air and naval activity in the Mediterranean derived from...

  Summaries describing enemy air and naval activity in the Mediterranean derived from signals intelligence and air reconnaissance

  Held by

  The National Archives, Kew

  Date

  1941 Apr 11-1942 Feb 11

  Reference

  HW 41/7

• Catalogue level

  Piece

  Reports of Japanese naval air decrypts

  Reports of Japanese naval air decrypts

  Held by

  The National Archives, Kew

  Date

  1944 May 27-1944 Jun 10

  Reference

  HW 27/7

• Catalogue level

  Piece

  Italian Mission. Correspondence with Cypher Security Mission in Rome, charged with...

  Italian Mission. Correspondence with Cypher Security Mission in Rome, charged with security of Italian diplomatic communications

  Held by

  The National Archives, Kew

  Date

  1944 Jul 24 - 1945 Jun 11

  Reference

  HW 53/7

• Catalogue level

  Piece

  German Naval Intelligence successes against Allied cyphers, prefixed by a general...

  German Naval Intelligence successes against Allied cyphers, prefixed by a general survey of German Sigint

  Held by

  The National Archives, Kew

  Date

  1939 Jan 01 - 1945 Dec 31

  Reference

  HW 40/7

• Catalogue level

  Piece

  Weekly reports on Second World War German army and air force communications

  Weekly reports on Second World War German army and air force communications

  Held by

  The National Archives, Kew

  Date

  1942 Oct 03-1942 Nov 15

  Reference

  HW 45/7

• Catalogue level

  Piece

  GC&CS Miscellaneous Papers: French Liaison November 1938 - August 1945. Establishment...

  GC&CS Miscellaneous Papers: French Liaison November 1938 - August 1945. Establishment of Sigint liaison with the French in the run-up to war November 1938. Clandestine liaison with 'Bertie' (Bertrand) located at 'Cadix' in Vichy France April 1941…

  Held by

  The National Archives, Kew

  Date

  1938 Nov 01 - 1945 Aug 07

  Reference

  HW 65/7

• Catalogue level

  Piece

  German support for the dissident Moroccan Sultan Mulai Hafid, resident in Spain,...

  German support for the dissident Moroccan Sultan Mulai Hafid, resident in Spain, abortive plans to return him by submarine to Morocco

  Held by

  The National Archives, Kew

  Date

  1916-1918

  Reference

  HW 7/31

• Catalogue level

  Piece

  German support for Raisuli and Abdel Malik and for Germans Bartels, Kuehnel and Fock,...

  German support for Raisuli and Abdel Malik and for Germans Bartels, Kuehnel and Fock, all leading and directing subversive military operations against the French in Morocco

  Held by

  The National Archives, Kew

  Date

  1916-1918

  Reference

  HW 7/30

• Catalogue level

  Piece

  Miscellaneous, mainly intelligence reports, vessel sightings at Spanish ports, May...

  Miscellaneous, mainly intelligence reports, vessel sightings at Spanish ports, May - June

  Held by

  The National Archives, Kew

  Date

  1916

  Reference

  HW 7/33

• Catalogue level

  Piece

  Political items: handling of Portuguese citizen Saladanha, out to obtain German support...

  Political items: handling of Portuguese citizen Saladanha, out to obtain German support in Spain for Royalist coup in Portugal, July-Aug 1916; German attempts to finance pro-German Spanish politician's tour to Argentina, May 1916 Jan 1971; planning f…

  Held by

  The National Archives, Kew

  Date

  1916-1917

  Reference

  HW 7/27