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 Southern Europe: of the locations of the 26th Panzer Division and the 15th Panzer Grenadier Division on the main Italian Front, as at June 1; and that the Sea Defence Commandant for western Greece orders another test of anti-gas procedures and equipment, on May 26.