0653

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/653
Date 16 June 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 the Chief of the Air Staff (CAS): with reference to compromised U.S. ciphers; see also 9743, 9744, 9761, 9779, 9871.

Document Title Date
i Front Cover 16 June 1942 Download PDF (270 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 16 June 1942 Download PDF (209 KB)
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