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 the German Navy: a general report for July 17; Naval Headlines, covering German and Italian activity; and messages from the Italian Foreign Ministry in Rome, on a recent Rome to Tokyo flight on July 5; a fragmentary message from the ambassador in Tokyo on a Rome to Tokyo flight, on July 9 or 10; from the Italian consul in Hankow on a Chinese air raid on Hankow on July 18; and from the Japanese minister in Madrid, on Soviet information on Anglo-Soviet relations and the second front as of July 17.