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• Japanese naval decrypts

  Held by

  The National Archives, Kew

  Date

  1944 Jan 17-1944 Jan 18

  Reference

  HW 23/73

• 85398-86094

  Held by

  The National Archives, Kew

  Date

  1944 Sep 07-1944 Sep 21

  Reference

  HW 19/73

• Reports on GAF Western Front Defences

  Held by

  The National Archives, Kew

  Date

  1942 Dec 31-1943 Mar 2

  Reference

  HW 13/73

• GPS Advanced Text reports from Roulette I keys

  Held by

  The National Archives, Kew

  Date

  1945 Jan - May

  Reference

  HW 16/73

• Naval Headlines: U-boat activities, Tirpitz preparing for torpedo firing trials,...

  Held by

  The National Archives, Kew

  Date

  1941 Sept 17

  Reference

  HW 1/73

• AASF RAF team in France in early stages of war

  Held by

  The National Archives, Kew

  Date

  1939 Sep 08-1940 Jun 23

  Reference

  HW 2/73

• Personnel of OKW/CHI [The German Central Cryptographic Organisation]

  Held by

  The National Archives, Kew

  Date

  1939 Sep 01 - 1945 May 08

  Reference

  HW 73/4

• Civil service recruitment for Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1942 Jun 01 - 1945 Oct 31

  Reference

  HW 64/73

• Enemy Cryptanalysis of High Grade British Codes and Ciphers to the End of 1943. Detailed...

  Held by

  The National Archives, Kew

  Date

  1941 Jun 19 - 1944 Mar 29

  Reference

  HW 73/1

• Rush Operational Signals Hut 3 to N.I.D. [Naval Intelligence Division, Admiralty]...

  Held by

  The National Archives, Kew

  Date

  1944 Jul 01-1944 Sep 26

  Reference

  HW 8/73

• Decrypts of medium/low grade German naval cypher messages

  Held by

  The National Archives, Kew

  Date

  1943 Feb 21-1943 Apr 29

  Reference

  HW 18/73

• Reports of decrypts of Japanese military attachés messages

  Held by

  The National Archives, Kew

  Date

  1944 Dec 21-1944 Dec 25

  Reference

  HW 35/73

• Distribution of messages to signals intelligence staff at intercept stations

  Held by

  The National Archives, Kew

  Date

  1942 Jan 06 - 1944 Feb 13

  Reference

  HW 51/73

• Reports of Japanese army air decrypts with subject headers

  Held by

  The National Archives, Kew

  Date

  1945 Mar 02-1945 Jun 03

  Reference

  HW 28/73

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

  Held by

  The National Archives, Kew

  Date

  Mar 16 1942-Mar 19 1942

  Reference

  HW 5/73

• History of the Signal Intelligence Service of India and South East Asia Commands...

  Held by

  The National Archives, Kew

  Date

  1939 Sep 01 - 1945 Aug 30

  Reference

  HW 43/73

• Decrypts of intercepted diplomatic communications. Afghanistan: 21070-21071, 21123,...

  Held by

  The National Archives, Kew

  Date

  1925 Aug

  Reference

  HW 12/73

• Moscow: "PAGE", "ROBERT" and "ALBERT" - criticism by "VIKTOR" of excessive haste.

  Held by

  The National Archives, Kew

  Date

  1945 Mar 20

  Reference

  HW 15/28/73

• Washington: (Report of minefield.)

  Held by

  The National Archives, Kew

  Date

  1943 Apr 1

  Reference

  HW 15/53/73

• New York: Question of "MAKSIM's" further stay in the "COUNTRY", and mention of "VARDO".

  Held by

  The National Archives, Kew

  Date

  1943 June 25

  Reference

  HW 15/19/73