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: Naval Headlines, that the Italian cruiser Trento was torpedoed and set on fire on June 15; on North Africa: a report for June 16; and on the intentions of the Africa Corps for June 17; and a German naval report for all areas for June 16.