20 Pfg numerals with retroactive handwheel roulette 9 3 / 4 to 10 from post office Seiffen - so-called postmaster separation, in perfect condition cancelled corner margin copy lower right, photo expertize Kunz BPP: "genuine and immaculate. Stamps with Seiffener roulette to class among the SBZ-rarities. ", Michel 1.200.-