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 the Panzer Army request the despatch by air of the 22nd Division from Greece, on August 15; and on the Mediterranean: that all aircraft torpedoes in Heraklion are to be sent as a priority to Catania on August 18.