1 / 4 Gr. Violet, small breast shield, horizontal strip of three and single (probably left neighbour stamp of the strip) on left shortened front of cover, with Prussia two ring cancel \"THAeNSDORF 1 3 73\" to Stettin. Later stationery turned and on the reverse side with single circle postmark \"GREIFENHAGEN 31 3 73\" together with notation \"liable to postage offical matter\" and rate number \"2\" in blue to Thaensdorf return. The stamps are fresh colours, extremley fine embossed and as usual perforated. Few all small patina traces disturb the very good general impression not