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• Visit to USA, November 1943 - January 1944. Visit of sub-section heads Thornett and...

  Held by

  The National Archives, Kew

  Date

  1943 Oct 30 - 1944 Jan 10

  Reference

  HW 53/43

• DSH 17 - Supplementary Crypotological Reports Nos. 1-9. Technical crypt reports

  Held by

  The National Archives, Kew

  Date

  1944 Mar 01 - 1945 Mar 31

  Reference

  HW 53/36

• French Liaison. Re-establishment of liaison with French Sigint (in North Africa)...

  Held by

  The National Archives, Kew

  Date

  1943 May 06 - 1945 Aug 27

  Reference

  HW 53/54

• German Diplomatic, January 1942 - June 1944. Minutes and correspondence concerning...

  Held by

  The National Archives, Kew

  Date

  1942 Jan 10 - 1944 May 27

  Reference

  HW 53/44

• Italian Mission - CXG Signals to and from Rome. GC&CS Berkeley Street correspondence...

  Held by

  The National Archives, Kew

  Date

  1944 Jul 29 - 1945 May 23

  Reference

  HW 53/27

• V Reports. Notes and correspondence concerning the setting up of a central cryptographic...

  Held by

  The National Archives, Kew

  Date

  1942 Dec 19 - 1943 Mar 10

  Reference

  HW 53/13

• PDH 4 cryptographic reports exchanged with CCR (Cryptographic Co-ordination and Records...

  Held by

  The National Archives, Kew

  Date

  1944 Feb 20 - 1944 Dec 20

  Reference

  HW 53/1

• Italian Mission - transmission misdemeanours. Correspondence concerning Italian post-armistice...

  Held by

  The National Archives, Kew

  Date

  1944 Apr 05 - 1945 May 26

  Reference

  HW 53/8

• DSH 13 - Diplomatic and Commercial miscellaneous papers. Correspondence on message...

  Held by

  The National Archives, Kew

  Date

  1943 Jan 04 - 1943 Dec 28

  Reference

  HW 53/16

• Italian Mission - Mr Catty and Mr Duke's reports. Reports by the Cypher Security...

  Held by

  The National Archives, Kew

  Date

  1944 Oct 06 - 1945 Jan 05

  Reference

  HW 53/26

• BP staff recruitment, liaison with Cambridge University, staff for DF Exchange at...

  Held by

  The National Archives, Kew

  Date

  1942 Sept 21-30

  Reference

  HW 14/53

• Commercial messages passed over diplomatic channels

  Held by

  Creating government department or its successor

  Date

  1946 Mar 01-1946 Mar 30

  Reference

  HW 32/53

• Organisation and use of communications by CBME

  Held by

  The National Archives, Kew

  Date

  1941 May 11 - 1944 Mar 08

  Reference

  HW 51/53

• Reports of Japanese army air decrypts with subject headers

  Held by

  The National Archives, Kew

  Date

  1944 Sep 01-1944 Nov 28

  Reference

  HW 28/53

• WTC (Wireless Telegraphy Co-ordination). Records of Williams' Section, responsible...

  Held by

  The National Archives, Kew

  Date

  1942 Nov 19 - 1944 Jun 03

  Reference

  HW 53/20

• Italian Mission. GC&CS party responsible for checking post-armistice Italian diplomatic...

  Held by

  The National Archives, Kew

  Date

  1943 Oct 15 - 1944 Aug 26

  Reference

  HW 53/6

• Mauritius. Correspondence mainly concerning interception and processing of Japanese...

  Held by

  The National Archives, Kew

  Date

  1940 Oct 02 - 1944 Oct 28

  Reference

  HW 53/4

• Censors. Correspondence concerning acquisition of telegraphic messages through the...

  Held by

  The National Archives, Kew

  Date

  1942 Mar 19 - 1943 Dec 13

  Reference

  HW 53/10

• DSH 14 - Berkeley Street memos. Office notes, procedure notes, serials (Denniston),...

  Held by

  The National Archives, Kew

  Date

  1943 Sep 28 - 1945 Jul 21

  Reference

  HW 53/5

• Telegrams to and from Washington. Messages concerning exchange of diplomatic cypher...

  Held by

  The National Archives, Kew

  Date

  1942 Sep 23 - 1943 Oct 01

  Reference

  HW 53/31