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 the Mediterranean: a German Air Force (GAF) report for August 31, describing an Axis tanker being sunk; on North Africa: of a request by the German ground forces for air cover on August 31; and Naval Headlines, covering Italian activity.