File Title 'C', Chief of the Secret Intelligence Service (SIS): Miscellaneous Correspondence, Including Allied Cyphers; Axis Activities in Turkey and Scandinavia; Y (Signals Intelligence) Board; Information and Reports of Actions From Various Sources; Secret Funding
Reference FO 1093/261
Date 12 December 1942 - 16 December 1943
Government Department Foreign Office
File Accession Date 23 May 2013
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