Document Title 'C', Chief of the Secret Intelligence Service (SIS): miscellaneous correspondence on cypher matters
Reference FO 1093/326
Conflicts Second World War
Themes Signals Intelligence and Code-breaking, Intelligence Organisation and Administration, Foreign Policy and International Relations
Regions Africa, Europe, Latin America, Middle East
Countries Belgium, Brazil, Egypt, Greece, Ireland, Italy, Portugal, Portuguese East Africa, Russia, Turkey, United Kingdom, Yugoslavia
Document Type Memoranda, Correspondence
Organisations Chiefs of Staff, Foreign Office, Security Service, Sicherheitsdienst, Permanent Under-Secretary's Department, Secret Intelligence Service
People Alexander Cadogan, Archibald Clark Kerr, Peter Loxley, Patrick Reilly
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