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  Division

  General records of the Government Code and Cypher School

  "ref" href="HW-d1-c26">HW 26; Intercepts of Iranian communications HW 58; Reports of Bulgarian Danube river and naval port authority decrypts HW 70.

  Held by

  Date

  1914-1979

  Reference

• Catalogue level

  Series

  Government Code and Cypher School: Bulgarian River Navigation and Port Authorities...

  This series contains intecepted and decyphered Bulgarian messages relating to the navigation of the River Danube and Bulgarian naval operations in the Aegean Sea.

  Held by

  The National Archives, Kew

  Date

  1944-1945

  Reference

  HW 70

• Catalogue level

  Piece

  Bulgarian messages concerned with shipping problems on the Danube and in the Aegean...

  Bulgarian messages concerned with shipping problems on the Danube and in the Aegean including attacks by allied forces

  Held by

  The National Archives, Kew

  Date

  1944 May 01 - 1945 Aug 23

  Reference

  HW 70/1

• Catalogue level

  Piece

  Signals from the British naval base at Alexandria concerned with enemy communications

  Signals from the British naval base at Alexandria concerned with enemy communications

  Held by

  The National Archives, Kew

  Date

  1943 Jul 07-1943 Dec 07

  Reference

  HW 41/70

• Catalogue level

  Piece

  Reply from GHQ Int (s) Mar 12 to EWT's letter of Mar 3 on GCCS liaison with GHQ and...

  Reply from GHQ Int (s) Mar 12 to EWT's letter of Mar 3 on GCCS liaison with GHQ and Y success in the field, agreed Mar 15 that GCCS GHQ Party be desolved now danger of invasion remote; Hut 3 to EWT with evidence of Axis reinforcements for Tunisia via…

  Held by

  The National Archives, Kew

  Date

  1943 Mar 11-20

  Reference

  HW 14/70

• 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

  1945 Jun 10-1945 Aug 10

  Reference

  HW 52/70

• Catalogue level

  Piece

  Analysis of callsign usage by German military units

  Analysis of callsign usage by German military units

  Held by

  The National Archives, Kew

  Date

  1942 Sep 16 - 1944 Mar 29

  Reference

  HW 51/70

• Catalogue level

  Piece

  Staffing and conditions of work at Bletchley Park

  Staffing and conditions of work at Bletchley Park

  Held by

  The National Archives, Kew

  Date

  1942 May 30 - 1943 Oct 31

  Reference

  HW 64/70

• Catalogue level

  Piece

  Decrypts of intercepted diplomatic communications. Afghanistan: 20309, 20391, 20449,...

  Decrypts of intercepted diplomatic communications. Afghanistan: 20309, 20391, 20449, 20462, 20481, 20490. Argentina: 20326, 20518. Belgium: 20313, 20319, 20343-20345, 20360, 20367, 20370, 20399, 20412, 20416-20417, 20425, 20494. Brazil: 20500. Chile:…

  Held by

  The National Archives, Kew

  Date

  1925 May

  Reference

  HW 12/70

• Catalogue level

  Piece

  Commercial reports

  Commercial reports

  Held by

  The National Archives, Kew

  Date

  1940 Dec 10-1940 Dec 20

  Reference

  HW 29/70

• Catalogue level

  Piece

  GCCS temporary male telegraphists' pay

  GCCS temporary male telegraphists' pay

  Held by

  The National Archives, Kew

  Date

  1939

  Reference

  HW 3/70

• 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 6 1942-Mar 9 1942

  Reference

  HW 5/70

• Catalogue level

  Piece

  Italian air activity including daily summaries 1 - 180 (second series).

  Italian air activity including daily summaries 1 - 180 (second series).

  Held by

  The National Archives, Kew

  Date

  1943 Jan 31-1943 July 30

  Reference

  HW 21/70

• 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

  1942 Oct 12-1942 Dec 02

  Reference

  HW 18/70

• Catalogue level

  Piece

  Fighter Command

  Fighter Command

  Held by

  The National Archives, Kew

  Date

  1940 Nov 12-1942 May 25

  Reference

  HW 2/70

• Catalogue level

  Piece

  Signals from D.D.I.C [Deputy Director Operational Intelligence Centre, Admiralty]...

  Signals from D.D.I.C [Deputy Director Operational Intelligence Centre, Admiralty] to Cdr. Saunders (GC&CS) 27-4-1941 - 12-10-1941 (Copies of signals to C. in C. Med & other commands).The intelligence was of naval interest, but derived from ai…

  Held by

  The National Archives, Kew

  Date

  1941 Apr 27-1941 Oct 12

  Reference

  HW 8/70

• Catalogue level

  Piece

  82003-83483

  82003-83483

  Held by

  The National Archives, Kew

  Date

  1944 Jun 18-1944 Jul 17

  Reference

  HW 19/70

• Catalogue level

  Piece

  GPS Advanced Text (AT) reporting series supporting GPD and GPDD series reports

  GPS Advanced Text (AT) reporting series supporting GPD and GPDD series reports

  Held by

  The National Archives, Kew

  Date

  1944 June - 1945 Mar

  Reference

  HW 16/70

• Catalogue level

  Piece

  Comintern messages: Communist Party, LONDON and BERLIN; Communist Party, LONDON and...

  Comintern messages: Communist Party, LONDON and BERLIN; Communist Party, LONDON and PARTICOM, 98 PARIS

  Held by

  The National Archives, Kew

  Date

  1931 Apr 22-1932 May 19

  Reference

  HW 17/70

• Catalogue level

  Piece

  1st Panzer Group sitrep Sept 15: 14th Panzer Division repulsed Soviet attack on east...

  1st Panzer Group sitrep Sept 15: 14th Panzer Division repulsed Soviet attack on east flank of advance, 48th Division and 9th Panzer Division advancing in face of obstinate resistance by armed civilians, 11th Army Corps captured Goroschin clearing lin…

  Held by

  The National Archives, Kew

  Date

  1941 Sept 16

  Reference

  HW 1/70