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: a BONIFACE report from Brigadier Jacob for the Prime Minister (PM); a BONIFACE report for Mr Loxley; a SUNSET intelligence report for November 13; on South-east Europe: of further landings on Leros, in the face of strong opposition, on November 13; on Southern Europe: that the Germans are expecting an Allied attack on the 5th Army front in the Cassino area, on November 12; and four battle reports for November 12.