0114

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/114
Date 4 October 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 messages: a summary of naval messages; a query from the Prime Minister (PM); reports of U-boat activities, including a claim to have sunk the SS San Florentino; a report that a convoy sailed from Naples for Tripoli with the designator C, including the ships Filzi, Pisani, Rialto, Veniero, Reichenfels and Ankara, escorted by 5 destroyers and was due to arrive in Tripoli on October 5; and a report that magnetic mines in Tripoli harbour sank tugs, the Bari and Follonica and damaged the Sivigliano.

Document Title Date
i Front Cover 4 October 1941 Download PDF (338 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 4 October 1941 Download PDF (947 KB)
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