Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

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 North Africa: of German Air Force (GAF) plans to attack an Allied convoy overnight on November 10/11; and that the GAF received a report from the French naval air commander at Bizerta that a major naval formation, including three aircraft carriers and 13 other warships, is heading for Bizerta and/or Bone, on November 10.