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 West Europe: the 1st SS Panzer Division reports enemy tank penetrations, on July 19; and on the 1st SS Panzer Corps' front line, as of July 19. 7162, 7166 and 7171 were incinerated on HMS Enterprise on the Prime Minister's (PM's) instructions, on July 21.