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• Probable Japanese estimate of Allied Land Forces SE Asia future operations

  Held by

  The National Archives, Kew

  Date

  1945 Aug 10-1945 Aug 31

  Reference

  HW 33/3

• Civil and diplomatic Sigint: history of development of civil international Sigint...

  Held by

  The National Archives, Kew

  Date

  1945-1946

  Reference

  HW 3/162

• No 30, History of NID8G: Leonard Forster's very critical review of this section,...

  Held by

  The National Archives, Kew

  Date

  1945

  Reference

  HW 3/134

• Y Sub-committee: minutes, special meetings and programmes. Y Sub-committee was the...

  Held by

  The National Archives, Kew

  Date

  1933 Nov 01-1938 Oct 27

  Reference

  HW 42/3

• No 31, reminiscences of Miss Senyard, head of Naval Section Secretariat: first handwritten...

  Held by

  The National Archives, Kew

  Date

  1945-1946

  Reference

  HW 3/135

• C's visit to Foreign Office of Apr 30 to discuss Foreign Office taking on and funding...

  Held by

  The National Archives, Kew

  Date

  1937 May

  Reference

  HW 3/79

• Air Section initial sub-section drafts for main German Air Section history: account...

  Held by

  The National Archives, Kew

  Date

  1945

  Reference

  HW 3/110

• German Army and Navy monitor diplomatic communications and prove German Foreign Office...

  Held by

  The National Archives, Kew

  Date

  1917 Mar-Aug

  Reference

  HW 3/181

• Weekly reports of the German Air sub-section concerning codes, intelligence traffic...

  Held by

  The National Archives, Kew

  Date

  1943 Dec 11 - 1945 May 12

  Reference

  HW 56/3

• Naval Section: listing of Japanese Historical Memoranda, nos 1-34, with details of...

  Held by

  The National Archives, Kew

  Date

  [c1945]

  Reference

  HW 3/154

• Messages concerned with the relaying of enemy signals intercepted in the Far East

  Held by

  The National Archives, Kew

  Date

  1942 Jul 25 - 1945 Oct 19

  Reference

  HW 59/3

• A description of Colorob. This report summarises the standards employed in the construction...

  Held by

  The National Archives, Kew

  Date

  1959 Jul 01

  Reference

  HW 76/3

• Metropolitan Police Sigint unit at Denmark Hill: correspondence 1926-1932 from head...

  Held by

  The National Archives, Kew

  Date

  1932-1957

  Reference

  HW 3/81

• C relaxes security restrictions at BP, official designation of GCCS in future to...

  Held by

  The National Archives, Kew

  Date

  1940 Jan-Feb

  Reference

  HW 14/3

• History of the Special Liaison Units (SLU) controlled by SLU 9 in the South West...

  Held by

  The National Archives, Kew

  Date

  1944 Nov 16-1946 Mar 31

  Reference

  HW 49/3

• Signals concerned with the interception of Middle East and North African communications

  Held by

  The National Archives, Kew

  Date

  1944 Jan 01 - 1944 Feb 29

  Reference

  HW 68/3

• MGB (Soviet Ministry of State Security) Traffic: Moscow with Sofia, Bulgaria. (Described...

  Held by

  The National Archives, Kew

  Date

  1945 Sept 16-1947 Mar 24

  Reference

  HW 15/3

• Decrypts of intercepted diplomatic communications. Argentina: 779. Austria: 794....

  Held by

  The National Archives, Kew

  Date

  1919 Dec 23-1920 Jan 21

  Reference

  HW 12/3

• Mathematical theory of ENIGMA machine by Alan Mathison Turing. (1) Also known as...

  Held by

  The National Archives, Kew

  Date

  1939 Jan 01 - 1942 Dec 31

  Reference

  HW 25/3

• Appendices to British-US Communication Intelligence Agreement. Regulations for the...

  Held by

  The National Archives, Kew

  Date

  1946

  Reference

  HW 80/3