0448

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/448
Date 26 March 1942
Government Department Government Code and Cypher School
File Accession Date 1993

Description

A file of signals intelligence reports, messages, and correspondence issued by the Government Code and Cypher School and sent by the head ('C') of the Secret Intelligence Service (MI6) to the Prime Minister, Winston Churchill. This file contains a message from C to Major General Ismay: that in Europe, the German Air Force (GAF) ordered extra security against sabotage in view of intended Allied landings, on March 23 (with the Prime Minister's (PM) instruction for the Chiefs of Staff (COS) committee to see this and a note that COS were most interested, from March 28).

Document Title Date
i Front Cover 26 March 1942 Download PDF (234 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 26 March 1942 Download PDF (1.17 MB)
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