British tanker British Renown visited the Black Sea according to a letter of the German naval attaché at Istanbul dated 12 February 1940

In his letter dated Istanbul, Turkey 12 February 1940 No. 729 g. reported the German naval attaché to the Oberkommando der Wehrmacht Abteilung Ausland the neutral ships passing Istanbul coming out of the Black Sea and loaded with contraband for or chartered by the enemy. An item reported the British tanker British Renown on 7 February 1940 underway from Constanta, Romania with 10,300 ton gasoline towards Gibraltar for orders. Reported passing FT on 9 February 1940. On the stern one gun, amidships 1 flak and mine protection device. Over all dark grey painted.

Source

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