0342

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/342
Date 4 January 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 BONIFACE reports: on instructions from the 4th Air Fleet that all reports from photographic reconnaissance were to be expedited from January 3; and that the Close Support Unit at Mariupol was reporting extreme cold and so there was no prospect for operations on January 4, and was concerned over the protection of airfields on January 3.

Document Title Date
i Front Cover 4 January 1942 Download PDF (387 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 4 January 1942 Download PDF (1.72 MB)
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