0073

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/73
Date 17 September 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 reports: a Naval Headlines report covering German U-boat activities; a report that the battleship Tirpitz was preparing for torpedo firing trials; a report that German patrol vessels had been alerted to prevent Norwegian blockade runners from breaking out; and Italian reports that the battleship HMS Nelson and the aircraft carrier HMS Ark Royal left Gibraltar sailing eastward on September 16.

Document Title Date
i Front Cover 17 September 1941 Download PDF (337 KB)
1 Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 17 September 1941 Download PDF (700 KB)
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