The clue - Plimsoll Mark as a German standard.
The ship was built in East Germany for the Polish shipping services.
MV Nab was built in 1979 as S-PRC 32
MV Needles built in 1978 as S-PRC 31
They were both Polish Registered vessels of the Dragmor S-ka z o.o. fleet.
It appears that they left Poland in 2005.
The lower white mark is for the occasions when the split hopper is wide open.
