HEINZ BAUMANN.

The flag has horizontal white-over-red halves with a black “B” overall. On the blue funnel it is depicted flying straight from a white pole.

Several exact-name, location and FOTW searches did not locate useful independent evidence. Actor, road transport, and unrelated personal records were rejected. Germany remains a source assertion, not independently verified. The local Heinz Baumann record is internally coherent and cites Lloyd's 1963–1971 and Brown 1978 for a German coastal owner.