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: BONIFACE reports for Mr Loxley; and the Deputy Prime Minister (PM); SUNSET reports sent to Cairo and Washington; a message from Special Communications Unit (SCU) Cairo for Spencer, the PM, via Gore-Browne, on December 7; on South-east Europe: of Allied bombing raids on German Air Force (GAF) airfields in Greece, on December 6; on South Europe: 90th Panzer Grenadier Division reports, for December 6; and 14th Panzer Corps reports, for December 6.