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  Appendix 2A Mexico City - see HW 15/39 for message texts

  Appendix 2A Mexico City - see HW 15/39 for message texts

  Held by

  The National Archives, Kew

  Date

  1940-1948

  Reference

  HW 15/61/6

• Catalogue level

  Division

  General records of the Government Code and Cypher School

  href="C9292">HW 13 and policy papers HW 14; Signals intelligence forwarded to allied commands, Tactical HW 20 and Political HW 39; Directorate

  Held by

  Date

  1914-1979

  Reference

• Catalogue level

  Series

  Government Code and Cypher School: Diplomatic Section and Intelligence Exchange Section:...

  The reports in this series were mainly drawn from the BJ series (HW 12) and the COM series (HW 32).

  Held by

  The National Archives, Kew

  Date

  1944-1945

  Reference

  HW 39

• Catalogue level

  Piece

  Information on the communications of the German, Spanish and French navies

  Information on the communications of the German, Spanish and French navies

  Held by

  The National Archives, Kew

  Date

  1944 May 05-1945 Sep 13

  Reference

  HW 18/39

• Catalogue level

  Piece

  GC&CS records stored at Wavendon House, Wavendon, Buckinghamshire

  GC&CS records stored at Wavendon House, Wavendon, Buckinghamshire

  Held by

  The National Archives, Kew

  Date

  1940 Jun 18 - 1945 Sep 17

  Reference

  HW 64/39

• Catalogue level

  Piece

  Minutes and agenda for officers' meetings at CBME

  Minutes and agenda for officers' meetings at CBME

  Held by

  The National Archives, Kew

  Date

  1941 Jun 29 - 1942 Dec 04

  Reference

  HW 51/39

• 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 Apr 20

  Reference

  HW 52/39

• Catalogue level

  Piece

  STARK 201-251

  STARK 201-251

  Held by

  The National Archives, Kew

  Date

  1945 Jan 01-1945 Feb 28

  Reference

  HW 39/9

• Catalogue level

  Piece

  STARK 137-200

  STARK 137-200

  Held by

  The National Archives, Kew

  Date

  1944 Nov 01-1944 Dec 31

  Reference

  HW 39/8

• Catalogue level

  Piece

  Reports in the series QT/4001 to QT/4500.

  Reports in the series QT/4001 to QT/4500.

  Held by

  The National Archives

  Date

  1942 Oct 21-1942 Oct 27

  Reference

  HW 20/39

• Catalogue level

  Piece

  Interception of German police messages

  Interception of German police messages

  Held by

  The National Archives, Kew

  Date

  1942 Mar 20 - 1942 Dec 08

  Reference

  HW 61/39

• Catalogue level

  Piece

  Security of electronic communications

  Security of electronic communications

  Held by

  Creating government department or its successor

  Date

  1954 Feb-1955 Apr

  Reference

  HW 9/39

• Catalogue level

  Piece

  GC&CS Naval Cryptanalytic Studies Volume XIV: Japanese Operational Codes and Minor...

  GC&CS Naval Cryptanalytic Studies Volume XIV: Japanese Operational Codes and Minor Cyphers by Lt H A L Cockerell RNVR, A R Davies, C F Linehan, Lt G M Meredith-Owens RM, Sub-Lt J O'C Morgan RNVR and J M G Pollard

  Held by

  Creating government department or its successor

  Date

  1939 Sep 01 - 1945 Aug 30

  Reference

  HW 43/39

• Catalogue level

  Piece

  Miscellaneous papers and correspondence

  Miscellaneous papers and correspondence

  Held by

  The National Archives, Kew

  Date

  1920-1936

  Reference

  HW 3/39

• Catalogue level

  Piece

  STARK 48-63

  STARK 48-63

  Held by

  The National Archives, Kew

  Date

  1944 Aug 01-1944 Aug 16

  Reference

  HW 39/4

• Catalogue level

  Piece

  STARK 427-450

  STARK 427-450

  Held by

  The National Archives, Kew

  Date

  1945 Sep 01-1945 Sep 30

  Reference

  HW 39/16

• Catalogue level

  Piece

  STARK 64-78

  STARK 64-78

  Held by

  The National Archives, Kew

  Date

  1944 Aug 17-1944 Aug 31

  Reference

  HW 39/5

• Catalogue level

  Piece

  Commercial reports. Report numbers 10842, 10843 missing at transfer

  Commercial reports. Report numbers 10842, 10843 missing at transfer

  Held by

  The National Archives, Kew

  Date

  1940 Aug 06-1940 Aug 07

  Reference

  HW 29/39

• Catalogue level

  Piece

  Flying Fortresses arrive in Cyprus in June (ASI 345). On 12 June HQ Western Sector,...

  Flying Fortresses arrive in Cyprus in June (ASI 345). On 12 June HQ Western Sector, Libya, warns that sabotage attacks are to be expected at night on 9 Libyan airfields, carried out by paratroops and long-range motorised troops (ASI 496). Reinforceme…

  Held by

  The National Archives, Kew

  Date

  1942 May 17-1942 July 25

  Reference

  HW 21/39

• Catalogue level

  Piece

  Commercial messages passed over diplomatic channels

  Commercial messages passed over diplomatic channels

  Held by

  The National Archives, Kew

  Date

  1945 May 01-1945 May 31

  Reference

  HW 32/39