COMPAGNIE NOUVELLE DE NAVIGATION BUSCK.

Lloyd’s 1912 assigns B581 to Société Anonyme de Transports Côtiers.

Stewart shows a blue B on both funnel and flag.

The flag is based on a bond dated 1 December 1928, reproduced on the Armateurs website and found by Jan Mertens. Rosanoski notes that the bond is essentially two-toned and cannot establish the colours used in the FOTW reconstruction; he regards those colours as presumed.