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 report that the 16th Panzer Division crossed the Dnieper river at Kremenchug on September 11; an order for German Air Force (GAF) aircraft to mine Novorossisk Harbour; a report of Soviet attempts to destroy a pontoon bridge at Dniepropetrovsk by burning oil ships; a report of heavy Soviet attacks against the western sector near Dniepropetrovsk being beaten back; a summary of aviation fuel stocks at Tripoli; a report of the Steamers SS Nirvo, SS Cafaro and SS Bainsizza - carrying munitions, supplies and parts - leaving Naples for Tripoli on September 10 in a convoy escorted by six destroyers; a report of 10th Air Corps intentions for September 11, including a night attack on Suez harbour installations and shipping; a report that the ex-Yugoslav submarine chasers Zuri, Selve and Zirona left Patras for Benghazi on September 9; a report of the possibility of Italian operations off the coast of Cyrenaica; of the arrival of the 21st Panzer Division and Italian Pavia Division in Cyrenaica; and a note from the Chief of the Imperial General Staff (CIGS) to the Prime Minister (PM) in response to a query about armoured divisions in Africa. This file also includes a Naval Headlines report that British destroyers attacked a German convoy in the Barents Sea.