6 Pfg numerals, black blue green, with official line rouletted 10 of the Regional Directorate of Posts Dresden and additional retroactive lines perforation 11 from post office KLOTZSCHE, in perfect condition mint never hinged, certificate with photograph Ströh BPP (2012) : "genuine and immaculate. Copies of this kind to class among the SBZ-rarities. ", Michel -.-