0002

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/2
Date 26 February 1941
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 includes the following correspondence: a request from C to the Prime Minister (PM) requesting permission to reveal to the Americans British progress with German armed forces cryptography, and a record of the information passed to them.

Document Title Date
i Front Cover 26 February 1941 Download PDF (335 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 26 February 1941 Download PDF (613 KB)
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