60 plus 40 Kopecks "Aid for the city kindergarten", horizontal pair from of the right lower corner of the sheet, imperforated proof print on paper without watermark, the right stamp with plate flaw I, mint never hinged, very fine, rare, signed Dr. Rommerskirchen et alia and photo expertize Walter Zirath BPP "the condition is perfect. those pairs are rare. ", Michel 1.600.- plus