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  Piece

  Prospects for interception of Japanese targets

  Prospects for interception of Japanese targets

  Held by

  The National Archives, Kew

  Date

  1944 Jun 01 - 1944 Aug 31

  Reference

  HW 33/13

• Catalogue level

  Piece

  Japanese army formations in Burma

  Japanese army formations in Burma

  Held by

  The National Archives, Kew

  Date

  1944 Jan 01-1945 Apr 01

  Reference

  HW 33/12

• Catalogue level

  Piece

  Japanese army telecommunications equipment

  Japanese army telecommunications equipment

  Held by

  The National Archives, Kew

  Date

  1945 Apr 01-1945 Apr 30

  Reference

  HW 33/8

• Catalogue level

  Piece

  Japanese army order of battle in South East Asia and China

  Japanese army order of battle in South East Asia and China

  Held by

  The National Archives, Kew

  Date

  1944 Jan 08-1944 Aug 11

  Reference

  HW 33/11

• Catalogue level

  Piece

  Commercial reports

  Commercial reports

  Held by

  The National Archives, Kew

  Date

  1940 Jun 11-1940 Jun 20

  Reference

  HW 29/33

• 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

  Oct 5 1941-Oct 11 1941

  Reference

  HW 5/33

• Catalogue level

  Piece

  Vol. XX The Mediterranean 1940 - 1943 by Frank L Jones; edited by Lieutenant Commander...

  Vol. XX The Mediterranean 1940 - 1943 by Frank L Jones; edited by Lieutenant Commander L A Griffiths, RNVR

  Held by

  The National Archives, Kew

  Date

  1940 - 1943

  Reference

  HW 11/33

• Catalogue level

  Piece

  Two Allied submarines possibly sunk by air attack on 28/29 July (ASI 4065, 4073)....

  Two Allied submarines possibly sunk by air attack on 28/29 July (ASI 4065, 4073). Indications that shortage of fuel is having an impact on operations in Libya (ASI 4686, 4707, 4708). Submarine reported damaged by air attack on 24 August (ASI 4703, 47…

  Held by

  The National Archives, Kew

  Date

  1941 July 26-1941 Sept 5

  Reference

  HW 21/33

• Catalogue level

  Piece

  Commercial messages passed over diplomatic channels

  Commercial messages passed over diplomatic channels

  Held by

  The National Archives, Kew

  Date

  1944 Nov 01-1944 Nov 30

  Reference

  HW 32/33

• Catalogue level

  Piece

  Summaries concerning the war situation in the Far East

  Summaries concerning the war situation in the Far East

  Held by

  The National Archives, Kew

  Date

  1941 Dec 07-1944 Aug 28

  Reference

  HW 33/5

• Catalogue level

  Piece

  Weekly summary reports on Second World War German army and air force communications

  Weekly summary reports on Second World War German army and air force communications

  Held by

  The National Archives, Kew

  Date

  1944 Feb 01-1944 May 13

  Reference

  HW 45/33

• Catalogue level

  Piece

  Miscellaneous, mainly intelligence reports, vessel sightings at Spanish ports, May...

  Miscellaneous, mainly intelligence reports, vessel sightings at Spanish ports, May - June

  Held by

  The National Archives, Kew

  Date

  1916

  Reference

  HW 7/33

• Catalogue level

  Piece

  Japanese naval decrypts

  Japanese naval decrypts

  Held by

  The National Archives, Kew

  Date

  1943 Sep 16-1943 Sep 23

  Reference

  HW 23/33

• Catalogue level

  Piece

  German Naval Air Activity (GNA): Including reconnaissance reports of English Channel,...

  German Naval Air Activity (GNA): Including reconnaissance reports of English Channel, Southern coast of England, Baltic and Scandinavian coast to Iceland, Atlantic; attacks on shipping in Arctic Ocean

  Held by

  The National Archives, Kew

  Date

  1942 Oct 1-1942 Dec 31

  Reference

  HW 13/33

• Catalogue level

  Piece

  Decrypts of all other GP codes other than No 3, issued as BP daily reports in GPD...

  Decrypts of all other GP codes other than No 3, issued as BP daily reports in GPD series. Missing at transfer

  Held by

  The National Archives, Kew

  Date

  1942 Jan-Apr

  Reference

  HW 16/33

• Catalogue level

  Piece

  Decrypts of Comintern messages: Moscow, USSR, with Basle and Zurich, Switzerland....

  Decrypts of Comintern messages: Moscow, USSR, with Basle and Zurich, Switzerland. (Described at item level)

  Held by

  The National Archives, Kew

  Date

  1935 Jan-1935 June

  Reference

  HW 17/33

• Catalogue level

  Piece

  1st Panzer Group to extend bridgehead near Dniepropetrovsk: Soviet air attacks. Battle...

  1st Panzer Group to extend bridgehead near Dniepropetrovsk: Soviet air attacks. Battle HQ of 8th Air Corps to move to point on Moscow-Leningrad railway. Army Group South to force crossing of Dniepr at Bereslaw, 1st Panzer Group to extend bridgehead a…

  Held by

  The National Archives, Kew

  Date

  1941 Aug 30

  Reference

  HW 1/33

• Catalogue level

  Piece

  Comments on AG Denniston's history: exchanges between GCCS senior officials Frank...

  Comments on AG Denniston's history: exchanges between GCCS senior officials Frank Birch and Nigel de Grey on the factual content of the history; manuscript notes from Nigel de Grey to Director GCCS on accuracy of Denniston's account; historical resea…

  Held by

  The National Archives, Kew

  Date

  1948

  Reference

  HW 3/33

• Catalogue level

  Piece

  Security of electronic communications

  Security of electronic communications

  Held by

  Creating government department or its successor

  Date

  1954 Feb-1955 Dec

  Reference

  HW 9/33

• Catalogue level

  Piece

  GC&CS Naval Cryptanalytic Studies Volume VIII: The Japanese Fleet General Purpose...

  GC&CS Naval Cryptanalytic Studies Volume VIII: The Japanese Fleet General Purpose System I by J W S Cassels and M A N Loewe

  Held by

  Creating government department or its successor

  Date

  1939 Sep 01 - 1945 Aug 30

  Reference

  HW 43/33