0491

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/491
Date 12 April 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 Sir Alexander Cadogan: a response to a comment from the Prime Minister (PM) regarding the disclosure of special source information to the Russians.

Document Title Date
i Front Cover 12 April 1942 Download PDF (234 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 12 April 1942 Download PDF (233 KB)
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