Document Title 'C', Chief of the Secret Intelligence Service (SIS): War Station; Bletchley Park
Reference FO 1093/307
Conflicts Second World War
Themes Intelligence Organisation and Administration, Signals Intelligence and Code-breaking
Regions Not Defined
Countries Not Defined
Document Type Correspondence
Organisations Foreign Office, Ministry of Economic Warfare, Permanent Under-Secretary's Department, Secret Intelligence Service
People Not Defined


British intelligence organisation, codes, personnel, housing

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