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: that the Parachute Army orders the development of Hertogenbosch as a bridgehead, on September 23; that the 47th Corps is to withdraw, on September 23; and of indications of the transfer of the 4th Air Corps to Denmark, on September 22.