1 / 4 Groschen yellow orange, having bright colours and with wide margins cut copy the rarest cancelled Oldenburg number of a major listing, tied by blue two ring cancel "Oldenburg 9 / 2", apart from one minimal trace of a corner crease at the bottom on the right (barely visible) in perfect condition, photo expertize Stegmüller BPP (2012) : "a rare stamp. ", Michel 5.000.-;