"NIEDERMENDIG 24 3 73" - BLUE K2, OPD Coblenz in blue stamping ink not in the Feuser listed, on piece German Empire 1 Gr., great breast plate (patina, right lower corner stuck on with a small rip at least at that time originally), to this on piece with stronger off centre drachma 1 Gr. great breast plate with black K2 "NIEDERMENDIG 3 8 74". The use of blue stamping ink is known in some other villages from the OPD Coblenz!