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: that the German Air Force (GAF) complain that destroyers threw aviation fuel barrels overboard off Derna, on November 29; that GAF Fieldmarshal Kesselring is to visit on November 30; and on GAF bomber operations for the night of November 28-29.