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

  Held by

  The National Archives, Kew

  Date

  1942 Dec 05 - 1943 Dec 06

  Reference

  HW 53/28

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

  Held by

  The National Archives, Kew

  Date

  1923 Dec

  Reference

  HW 12/53

• 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

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

  Held by

  The National Archives, Kew

  Date

  1939 Dec - 1942 Jan

  Reference

  HW 16/53

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

  Held by

  The National Archives, Kew

  Date

  1943 Nov 09 - 1944 Aug 15

  Reference

  HW 53/23

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

  Held by

  The National Archives, Kew

  Date

  1943 Jan 04 - 1944 Jun 29

  Reference

  HW 53/35

• RAF - CMC and ALAMETCO. Missing at transfer

  Held by

  The National Archives, Kew

  Date

  1942 Jan 01 - 1945 Dec 31

  Reference

  HW 40/53

• Treasury agrees to fund GCCS purchase

  Held by

  The National Archives, Kew

  Date

  1931

  Reference

  HW 3/53

• Commercial reports

  Held by

  The National Archives, Kew

  Date

  1940 Oct 22-1940 Oct 25

  Reference

  HW 29/53

• 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

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

  Held by

  The National Archives, Kew

  Date

  1944 Jun 06-1944 Jul 23

  Reference

  HW 41/53

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

  Held by

  The National Archives, Kew

  Date

  1943 Sept 1

  Reference

  HW 21/53

• 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

• 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

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

  Held by

  The National Archives, Kew

  Date

  1944 Mar 22 - 1945 Aug 31

  Reference

  HW 53/11

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

  Held by

  The National Archives, Kew

  Date

  1943 Jan 15 - 1943 Aug 07

  Reference

  HW 53/2

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

  Held by

  The National Archives, Kew

  Date

  1943 Jan 03 - 1943 Jun 06

  Reference

  HW 53/19

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

  Held by

  The National Archives, Kew

  Date

  1941 Nov 09 - 1944 Jul 10

  Reference

  HW 53/15

• 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

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

  Held by

  The National Archives, Kew

  Date

  1942 Dec 17 - 1943 Nov 26

  Reference

  HW 53/29