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 15th Panzer Division is withdrawing, on September 3; and that the German 90th Light Division and Ramcke Brigade are under attack on September 4; and on Germany: that hydrogenation plants are to be protected by smoke-screens, from September 3.