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 South Europe: the Commander in Chief (C-in-C) for the Southwest's report for February 1, passing on information from prisoners on the enemy order of battle; on South-east Europe: of ships being sunk off the Dalmatian coast, on February 8-9; and T90/20 was returned to the Prime Minister (PM) (see 5705).