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: a German Air Force (GAF) report for October 13 for all areas: on Allied air raids in northern Europe, on GAF activities off southern England, in the Mediterranean, in North Africa and on the Russian Front; a quote from Reuters regarding eastern Asia and Allied shipping losses in a battle off the Solomon Islands; and Naval Headlines, covering Allied successes in air raids over Benghazi being attributed to poor anti-aircaft defences.