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: that three transport aircraft units recently based in southern Russia are to deploy to the Mediterranean area and transport fuel for the Panzer Army, on October 29; details of German Air Force (GAF) fuel supply flights from October 30; and that Tobruk, El Adem and Bu Amud are to be fuel distribution airfields.