British steamship Refast visited the Black Sea according to a letter of the German naval attaché at Istanbul dated 27 January 1940

In his letter dated Istanbul, Turkey 27 January 1940 No. 690g. reported the German naval attaché to the Oberkommando der Wehrmacht Abteilung Ausland the ships passing Istanbul coming out of the Black Sea and loaded with contraband for or chartered by the enemy. An item referred to a telegram reporting on 25 January the British steamship Refast loaded with 6,385 ton petrol underway from Constanta, Romania to Avonmouth, England. Complete dark grey painted. 2 Masts. Armed with 1 gun and 1 flak on the stern.

Source

Bundesarchiv. Germ