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  Piece

  Telegrams to Bayly. Correspondence concerning provision of diplomatic cypher messages...

  Telegrams to Bayly. Correspondence concerning provision of diplomatic cypher messages from New York

  Held by

  The National Archives, Kew

  Date

  1942 Dec 05 - 1943 Dec 06

  Reference

  HW 53/28

• Catalogue level

  Piece

  Decrypts of intercepted diplomatic communications. Afghanistan: 15064-15066, 15084,...

  Decrypts of intercepted diplomatic communications. Afghanistan: 15064-15066, 15084, 15099-15100, 15181, 15237, 15253, 15277, 15326-15327, 15347, 15358, 15365. Austria: 15096. Belgium: 15069, 15121-15122, 15282, 15315. France: 15049-15053, 15068A, 150…

  Held by

  The National Archives, Kew

  Date

  1923 Dec

  Reference

  HW 12/53

• Catalogue level

  Piece

  Reports in the series QT/8751 to QT/9000.

  Reports in the series QT/8751 to QT/9000.

  Held by

  The National Archives

  Date

  1942 Dec 17-1942 Dec 20

  Reference

  HW 20/53

• Catalogue level

  Piece

  GP decrypts selected by Major Pritchard of 4 IS as being of special interest for...

  GP decrypts selected by Major Pritchard of 4 IS as being of special interest for signalling to War Office or Air Ministry

  Held by

  The National Archives, Kew

  Date

  1939 Dec - 1942 Jan

  Reference

  HW 16/53

• Catalogue level

  Piece

  Emergency - CROSSBOW. Emergency arrangement for accommodation in the event of a German...

  Emergency - CROSSBOW. Emergency arrangement for accommodation in the event of a German V1 or V2 strike on Berkeley Street

  Held by

  The National Archives, Kew

  Date

  1943 Nov 09 - 1944 Aug 15

  Reference

  HW 53/23

• Catalogue level

  Piece

  American Liaison 1943. Correspondence mainly between A G Denniston, Head of Operations...

  American Liaison 1943. Correspondence mainly between A G Denniston, Head of Operations at Berkeley Street, title Deputy Director (Civil) [DD(C)], and British liaison officers in Washington and senior US Sigint authorities

  Held by

  The National Archives, Kew

  Date

  1943 Jan 04 - 1944 Jun 29

  Reference

  HW 53/35

• Catalogue level

  Piece

  RAF - CMC and ALAMETCO. Missing at transfer

  RAF - CMC and ALAMETCO. Missing at transfer

  Held by

  The National Archives, Kew

  Date

  1942 Jan 01 - 1945 Dec 31

  Reference

  HW 40/53

• Catalogue level

  Piece

  Treasury agrees to fund GCCS purchase

  Treasury agrees to fund GCCS purchase

  Held by

  The National Archives, Kew

  Date

  1931

  Reference

  HW 3/53

• Catalogue level

  Piece

  Commercial reports

  Commercial reports

  Held by

  The National Archives, Kew

  Date

  1940 Oct 22-1940 Oct 25

  Reference

  HW 29/53

• Catalogue level

  Piece

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

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

  Held by

  The National Archives, Kew

  Date

  Jan 7 1942-Jan 10 1942

  Reference

  HW 5/53

• Catalogue level

  Piece

  Signals from the Supreme Headquarters Allied Expeditionary Force in France (SHAEF)...

  Signals from the Supreme Headquarters Allied Expeditionary Force in France (SHAEF) signed by Eisenhower reporting the progress of the allied invaison of France

  Held by

  The National Archives, Kew

  Date

  1944 Jun 06-1944 Jul 23

  Reference

  HW 41/53

• 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

  1943 Sept 1

  Reference

  HW 21/53

• 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

  1944 Aug 26-1944 Sep 03

  Reference

  HW 35/53

• Catalogue level

  Piece

  Decrypts of Japanese army and army air force messages

  Decrypts of Japanese army and army air force messages

  Held by

  The National Archives, Kew

  Date

  1944 Oct 01-1945 Jun 30

  Reference

  HW 52/53

• Catalogue level

  Piece

  Censors. Correspondence concerning censorship matters and the acquisition of diplomatic...

  Censors. Correspondence concerning censorship matters and the acquisition of diplomatic and commercial telegrams for GC&CS

  Held by

  The National Archives, Kew

  Date

  1944 Mar 22 - 1945 Aug 31

  Reference

  HW 53/11

• Catalogue level

  Piece

  PDH 5 cryptographical papers from CCR (Cryptographic Co-ordination and Records Section...

  PDH 5 cryptographical papers from CCR (Cryptographic Co-ordination and Records Section at Bletchley Park)

  Held by

  The National Archives, Kew

  Date

  1943 Jan 15 - 1943 Aug 07

  Reference

  HW 53/2

• Catalogue level

  Piece

  WTC (Wireless Telegraphy Co-ordination). Correspondence concerning interception and...

  WTC (Wireless Telegraphy Co-ordination). Correspondence concerning interception and processing of diplomatic and commercial messages

  Held by

  The National Archives, Kew

  Date

  1943 Jan 03 - 1943 Jun 06

  Reference

  HW 53/19

• Catalogue level

  Piece

  Traffic Exchange. Correspondence concerning negotiations between the UK and USA on...

  Traffic Exchange. Correspondence concerning negotiations between the UK and USA on exchange of intercepted diplomatic and commercial messages

  Held by

  The National Archives, Kew

  Date

  1941 Nov 09 - 1944 Jul 10

  Reference

  HW 53/15

• Catalogue level

  Piece

  Reports describing the Japanese naval air order of battle

  Reports describing the Japanese naval air order of battle

  Held by

  The National Archives, Kew

  Date

  1943 Nov 01-1945 Aug 01

  Reference

  HW 27/53

• Catalogue level

  Piece

  Telegrams from Bayly. Correspondence concerning provision of diplomatic cypher texts...

  Telegrams from Bayly. Correspondence concerning provision of diplomatic cypher texts from the USA

  Held by

  The National Archives, Kew

  Date

  1942 Dec 17 - 1943 Nov 26

  Reference

  HW 53/29