D. OLTMANN.
image by Jarig Bakker, 27 November 2005
Brown 1982’s notes say that some vessels had adopted this funnel. The FOTW flag follows Brown 1995.
Mitchell assigns this funnel to D. Oltmann of Brake.
Mitchell assigns it to Roland von Bremen, listed under D. Oltmann Seeverkehrges mbH & Co. K.G. in 1985–86.