British steam tanker San Cirilo bound for England according to a letter of the German naval attaché at Istanbul dated 20 January 1940

In his letter dated Istanbul,  20 January 1940 No. 650 g. reported the German naval attaché to the Oberkommando der Kriegsmarine the ships passing Istanbul coming out of the Black Sea and loaded with contraband for or chartered by the enemy. An item reported on 11 January 1940 the British steam tanker San Cirilo which left Beykos [Beykoz, Turkey] that day towards Land’s End for order and no longer Gibraltar as first was intended. Loaded with 1,040 ton white spirit- 6,940 ton diesel oil-3,183 ton petrol, totally 11,163 ton.

Source

Bundesarchiv. German Marineattaché for , Greece, Romania and Bulgaria 1939-1941. RM 12-II/459.