Hut Six Story Robert Armstrong to Magaret Thatcher

Date: 30 April 1982 Reference: PREM 19/910 (1) Creator: Prime Minister's Office Catalogue context: SECURITY. Publication of book by Gordon Welchman (former head of Hut 6) called 'The Hut Six Story' on wartime German Enigma cryptanalysis: reactions of US and UK governments Categories: Politics Subjects: Government; Topics: British state and citizens Period: Postwar Copyright information: Copyright clearance for publication is not required, except in the case of documents in third-party copyright. Usage terms: https://www.nationalarchives.gov.uk/documents/information-management/use-of-tna-materials.pdf