0499

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/499
Date 15 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 includes the following reports: on the routes of Flak units moving from France and Germany to the Russian Front, on April 15; and Naval Headlines, covering U-boat activities against convoys in the Barents Sea, and Italian convoys in the Mediterranean.

Document Title Date
i Front Cover 15 April 1942 Download PDF (229 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 15 April 1942 Download PDF (1.19 MB)
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