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: from BONIFACE (C to Bdr Hollis for the Prime Minister [PM]); Naval Headlines, covering Italian activity; on North Africa: a German Air Force (GAF) situation appreciation for June 19; that the 15 Panzer Division is approaching Tobruk harbour, on June 20; and a GAF operational report for June 20; 1102/T22, 1101/T1, and 1104/T19 were extracted for the PM, see 9866.