HC Deb 19 October 1999 vol 336 c426W
Mr. John D. Taylor

To ask the Secretary of State for Foreign and Commonwealth Affairs, pursuant to the answer of 31 March 1999,Official Report, column 689, on Government Codes and Cypher School, if GCHQ holds a complete copy of Turing's Treatise on the Enigma to be released to the Public Record Office; and if Turing's Treatise on the Enigma has been released to the United States National Archives. [93961]

Mr. Robin Cook

GCHQ holds Turing's Treatise on the Enigma and will shortly release it to the PRO. A facsimile is available in the United States National Archives.