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  Piece

  Japanese naval decrypts

  Japanese naval decrypts

  Held by

  The National Archives, Kew

  Date

  1944 Jan 17-1944 Jan 18

  Reference

  HW 23/73

• Catalogue level

  Piece

  85398-86094

  85398-86094

  Held by

  The National Archives, Kew

  Date

  1944 Sep 07-1944 Sep 21

  Reference

  HW 19/73

• Catalogue level

  Piece

  Reports on GAF Western Front Defences

  Reports on GAF Western Front Defences

  Held by

  The National Archives, Kew

  Date

  1942 Dec 31-1943 Mar 2

  Reference

  HW 13/73

• Catalogue level

  Piece

  GPS Advanced Text reports from Roulette I keys

  GPS Advanced Text reports from Roulette I keys

  Held by

  The National Archives, Kew

  Date

  1945 Jan - May

  Reference

  HW 16/73

• Catalogue level

  Piece

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

  Naval Headlines: U-boat activities, Tirpitz preparing for torpedo firing trials, German patrol vessels alerted to prevent Norwegian blockade runners breaking out, Italian reports that Nelson and Ark Royal left Gibraltar going eastward, Sept 16

  Held by

  The National Archives, Kew

  Date

  1941 Sept 17

  Reference

  HW 1/73

• Catalogue level

  Piece

  AASF RAF team in France in early stages of war

  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

• Catalogue level

  Piece

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

  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

• Catalogue level

  Piece

  Civil service recruitment for Bletchley Park

  Civil service recruitment for Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1942 Jun 01 - 1945 Oct 31

  Reference

  HW 64/73

• Catalogue level

  Piece

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

  Enemy Cryptanalysis of High Grade British Codes and Ciphers to the End of 1943. Detailed analysis of evidence that the Germans were reading British naval cyphers

  Held by

  The National Archives, Kew

  Date

  1941 Jun 19 - 1944 Mar 29

  Reference

  HW 73/1

• Catalogue level

  Piece

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

  Rush Operational Signals Hut 3 to N.I.D. [Naval Intelligence Division, Admiralty] 8E.I.Hut 3 reports of intelligence derived from air and ground forces communications, but of naval interest. For an explanation of serial numbers and addressees see pie…

  Held by

  The National Archives, Kew

  Date

  1944 Jul 01-1944 Sep 26

  Reference

  HW 8/73

• Catalogue level

  Piece

  Decrypts of medium/low grade German naval cypher messages

  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

• Catalogue level

  Piece

  Reports of decrypts of Japanese military attachés messages

  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

• Catalogue level

  Piece

  Distribution of messages to signals intelligence staff at intercept stations

  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

• Catalogue level

  Piece

  Reports of Japanese army air decrypts with subject headers

  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

• Catalogue level

  Piece

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

  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

• Catalogue level

  Piece

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

  History of the Signal Intelligence Service of India and South East Asia Commands 1939-1945. An account of the Sigint Services with the main emphasis on the command and organisational structures rather than the product

  Held by

  The National Archives, Kew

  Date

  1939 Sep 01 - 1945 Aug 30

  Reference

  HW 43/73

• Catalogue level

  Piece

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

  Decrypts of intercepted diplomatic communications. Afghanistan: 21070-21071, 21123, 21135, 21248. Belgium: 21128, 21197. Brazil: 21095-21096, 21155, 21173. Chile: 21246. Egypt: 21141, 21148, 21168, 21181, 21198, 21216, 21230, 21258, 21288. France: 21…

  Held by

  The National Archives, Kew

  Date

  1925 Aug

  Reference

  HW 12/73

• Catalogue level

  Item

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

  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

• Catalogue level

  Item

  Washington: (Report of minefield.)

  Washington: (Report of minefield.)

  Held by

  The National Archives, Kew

  Date

  1943 Apr 1

  Reference

  HW 15/53/73

• Catalogue level

  Item

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

  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