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  Series

  Ministry of Defence - Directorate of Scientific Intelligence: Joint Intelligence...

  Reports, notes and memoranda, together with a range of other intelligence products generated by: the Ministry of Defence Directorate of Scientific Intelligence (DSI) (later the Joint Intelligence Bureau (JIB) Division of Scientific Intelligence); the…

  Held by

  The National Archives, Kew

  Date

  1944-1996

  Reference

  DEFE 44

• Catalogue level

  Series

  Postal and Telegraph Censorship Department, predecessors and successor: Papers

  Papers selected to illustrate the organization and work on postal and telegraph censorship during the Second World War by the Directorate of Military Intelligence at the War Office and by the Postal and Telegraph Censorship Department. The series als…

  Held by

  The National Archives, Kew

  Date

  1914-1959

  Reference

  DEFE 1

• Catalogue level

  Series

  Ministry of Economic Warfare, Special Operations Executive and successors: Headquarters:...

  This series contains the surviving records produced by Special Operations Executive headquarters sections supporting the work of the various country sections that ran active operations behind enemy lines, and also the private office papers of Lord Se…

  Held by

  The National Archives, Kew

  Date

  1935-1973

  Reference

  HS 8

• Catalogue level

  Series

  Special Operations Executive: Station 15b Exhibition: Photographs

  This series contains a photograph album prepared to record the work of SOE station 15b, as shown in a war-time display mounted in the 'Demonstration Room' in the Natural History Museum. The album contains photographs of exhibits in the display, toget…

  Held by

  The National Archives, Kew

  Date

  1940-1946

  Reference

  HS 10

• Catalogue level

  Series

  Ministry of Defence - Defence Intelligence Staff: Director-General of Intelligence,...

  This series contains centrally-staffed DIS assessments, reports and studies of the military capabilities and organisation of nations and organisations of interest, in particular of potential enemies and of those which threaten UK national interests.

  Held by

  The National Archives, Kew

  Date

  1973-1999

  Reference

  DEFE 62

• Catalogue level

  Series

  Foreign Office and Foreign and Commonwealth Office: Information Research Department:...

  This series includes files of the Foreign and Commonwealth Office's Information Research Department regarding political and economic intelligence. This includes files concerning political figures and leaders between 1944-1950, Gestapo collaborators,…

  Held by

  The National Archives, Kew

  Date

  1878-1957

  Reference

  FCO 162

• Catalogue level

  Series

  Ministry of Defence: Joint Intelligence Bureau: Economic and General Division, later...

  This series consists of numerous examples of the wide range of Intelligence Digests, Reports, Notes, Briefing Memoranda and Surveys produced by DJSEI and its predecessors across the whole field of their responsibilities.

  Held by

  The National Archives, Kew

  Date

  1946-1972

  Reference

  DEFE 60

• Catalogue level

  Series

  Government Code and Cypher School: Diplomatic Section and predecessors: Decrypts...

  This series contains decrypted foreign diplomatic telegrams and reports by the Government Code and Cypher School. The origin of the series name 'BJ Reports' is that the reports were circulated by the Foreign Office (the main recipient) in blue file j…

  Held by

  The National Archives, Kew

  Date

  1919-1945

  Reference

  HW 12

• Catalogue level

  Series

  War Office and Ministry of Defence: Confidential Print

  Handbooks, manuals and memoranda printed for use within the War Office or by the Army, and not included in WO 33. They cover army manoeuvres in England, Scotland and Ireland, staff conferences, handbooks, manuals (including manuals of military intell…

  Held by

  The National Archives, Kew

  Date

  1874-1990

  Reference

  WO 279

• Catalogue level

  Series

  Major General Sir John Charles Ardagh: Papers

  These are papers of Major-General Sir John Charles Ardagh, which were bequeathed to the Public Record Office by his widow, Susan Hamilton, dowager Countess of Malmesbury.They consist partly of materials used by her in the preparation of his biography…

  Held by

  The National Archives, Kew

  Date

  1862-1908

  Reference

  PRO 30/40

• Catalogue level

  Department

  Records created or inherited by the Secret Intelligence Service

  Records inherited by the Secret Intelligence Service and created by the Foreign Office's Permanent Under Secretary's Department relating to responsibilities for funding intelligence gathering operations abroad and Colonial Office records of expenditu…

  Held by

  The National Archives, Kew

  Date

  1742-2010

  Reference

  HD

• Catalogue level

  Series

  Government Code and Cypher School: Commercial Section: Reports of Plain Language...

  This series comprises summary reports by the Commercial Section of commercial messages originated in enemy and neutral countries. Two notable topics stand out: German efforts to obtain wolfram and iron ore from Spain; and the attempts by Japan to obt…

  Held by

  The National Archives, Kew

  Date

  1938-1945

  Reference

  HW 29

• Catalogue level

  Series

  Government Code and Cypher School: Naval Section: Reports, Working Aids and Correspondence

  This series consists of correspondence, minutes, memoranda, instructions, information bulletins and other papers relating to the organisation of Naval Section, its operations and functions, relations with the Admiralty and with stations responsible f…

  Held by

  The National Archives, Kew

  Date

  1914-1946

  Reference

  HW 8

• Catalogue level

  Series

  Government Code and Cypher School: Combined Bureau Middle East (CBME): Records

  This series contains surviving records of the Combined Bureau Middle East.

  Held by

  The National Archives, Kew

  Date

  1940-1944

  Reference

  HW 51

• Catalogue level

  Series

  Government Code and Cypher School: Sigint Board and predecessors: Correspondence...

  This series contains correspondence of the Sigint Board and its predecessors, the top level organisation which controlled the direction and priorities of signals intelligence work, including the manpower and employment of resources, tasking of units …

  Held by

  The National Archives, Kew

  Date

  1940-1945

  Reference

  HW 69

• Catalogue level

  Series

  Government Code and Cypher School: Diplomatic Section and Intelligence Exchange Section:...

  This series contains a series of reports issued by the Government Code and Cypher School of selected decrypted foreign diplomatic telegrams compiled for their interest to military commanders, known as the STARK reports. The reports in this series wer…

  Held by

  The National Archives, Kew

  Date

  1944-1945

  Reference

  HW 39

• Catalogue level

  Series

  Government Code and Cypher School: Iranian Military and Air Attaché Messages

  The series consists of intercepted decrypted and translated messages between the Iranian War Ministry in Tehran and Iranian military and air attachés abroad, particularly in Axis capitals.

  Held by

  The National Archives, Kew

  Date

  1942-1943

  Reference

  HW 58

• Catalogue level

  Series

  Government Code and Cypher School: Histories of British Sigint

  This series contains histories of British Sigint, most of which were intially retained under Section 3(4) of the Public Records Act 1958. The three-volume 'History of British Sigint, 1914-1945' (HW 43/1-3) provides an overview of policy and operation…

  Held by

  The National Archives, Kew

  Date

  1914-1945

  Reference

  HW 43

• Catalogue level

  Series

  Government Code and Cypher School and Government Communications Headquarters (GCHQ):...

  This series contains records consulted and used in preparation of Ferris, J's book titled 'Behind the Enigma: The Authorised History of GCHQ, Britain's Secret Cyber Intelligence Agency'. This includes papers, correspondence, minutes, memoranda, inter…

  Held by

  The National Archives, Kew

  Date

  1945-1983

  Reference

  HW 92

• Catalogue level

  Series

  Government Code and Cypher School: ISOS Section and ISK Section: Decrypts of German...

  This series consists mainly of decrypts of German Secret Service messages decrypted by the Government Code and Cypher School. The series started with the nomenclature ISOS - intelligence service Oliver Strachey - and ISK - intelligence service Knox, …

  Held by

  The National Archives, Kew

  Date

  1939-1945

  Reference

  HW 19