1568

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/1568
Date 6 April 1943
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: SHARK, that U-boat cipher keys for April 3-4 have been recovered; on North Africa: of defensive successes being claimed for the 10th and 21st Panzer divisions at Guettar; and of damage to Ju88s of a German Air Force (GAF) reconnaissance group; and on the Southern Russian Front: German Army signals intelligence on Soviet forces on the North Caucasus Front, from March 28.

Document Title Date
i Front Cover 6 April 1943 Download PDF (301 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 6 April 1943 Download PDF (2.89 MB)
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