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• Government Code and Cypher School: German Signals Intelligence in the Second World...

  Held by

  The National Archives, Kew

  Date

  1934-1945

  Reference

  HW 73

• Government Code and Cypher School: Research Section: Memoranda, Minutes and Weekly...

  Held by

  The National Archives, Kew

  Date

  1941-1944

  Reference

  HW 78

• Government Communications Headquarters and Predecessor: Records relating to the development...

  Held by

  The National Archives, Kew

  Date

  1945-1956

  Reference

  HW 80

• Government Code and Cypher School: Directorate: Second World War Policy Papers

  Held by

  The National Archives, Kew

  Date

  1933-1949

  Reference

  HW 14

• Government Code and Cypher School: Weekly Reports

  Held by

  The National Archives, Kew

  Date

  1941-1945

  Reference

  HW 77

• Government Code and Cypher School: Military Section: Reports of Japanese Military...

  Held by

  The National Archives, Kew

  Date

  1942-1945

  Reference

  HW 35

• Government Code and Cypher School: Cypher Messages of Allies

  Held by

  The National Archives, Kew

  Date

  1942-1945

  Reference

  HW 74

• Government Code and Cypher School: Signals relating to the Establishment of Communications...

  Held by

  The National Archives, Kew

  Date

  1941-1945

  Reference

  HW 59

• Government Communications Headquarters and predecessor: Soviet Bloc reports

  Held by

  The National Archives, Kew

  Date

  1945-1950

  Reference

  HW 75

• Government Code and Cypher School: Air Section: Weekly Reports

  Held by

  The National Archives, Kew

  Date

  1942-1945

  Reference

  HW 56

• Government Code and Cypher School: Naval Section and Air Section: Reports based on...

  Held by

  The National Archives, Kew

  Date

  1943-1945

  Reference

  HW 27

• Government Code and Cypher School: Collection and Analysis of Middle Eastern and...

  Held by

  The National Archives, Kew

  Date

  1943-1944

  Reference

  HW 68

• Government Code and Cypher School: Summary Reports, Second World War in the Far East

  Held by

  The National Archives, Kew

  Date

  1944-1945

  Reference

  HW 44

• Government Code and Cypher School: Air Section: Reports based on Japanese Army Air...

  Held by

  The National Archives, Kew

  Date

  1943-1946

  Reference

  HW 28

• Government Code and Cypher School: Japanese Military Intelligence Section: Reports...

  Held by

  The National Archives, Kew

  Date

  1943-1945

  Reference

  HW 46

• Room 40 and successors: World War I Official Histories

  Held by

  The National Archives, Kew

  Date

  [c1910]-1923

  Reference

  HW 7

• Admiralty: Plymouth Station: Correspondence

  Held by

  The National Archives, Kew

  Date

  1842-1969

  Reference

  ADM 131

• War Office: Registered Papers (Special Series)

  Held by

  The National Archives, Kew

  Date

  1912-1946

  Reference

  WO 141

• Cabinet Office: Establishment Section: Administrative Records (E Series)

  Held by

  The National Archives, Kew

  Date

  1917-1980

  Reference

  CAB 150

• Foreign Office and Predecessors: Allied Commission for Austria (British Element):...

  Held by

  The National Archives, Kew

  Date

  1944-1955

  Reference

  FO 1007