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 the German Air Force's (GAF's) interpretation of reconnaissance photographs of harbours, on July 4; Naval Headlines; and from the Portuguese minister in Washington DC: that the Portuguese are to receive ammunition from the U.S. via the U.K., on July 2.