10 Pfg numerals with retroactive sewing roulette of the post office Seiffen (so called. Postmaster separation, variety "left unperforated", from the left sheet margin, neat cancelled "SEIFFEN 24.9.45", photo expertize Kunz BPP: "genuine and in perfect quality. These stamp counts, especially as partially perforated margin copy, to the SBZ-rarities. I have had no other used example of the left margin so far. ", Michel 2.500.-