20 penny official stamp, fabric paper, drawing type II, watermark 2 XI, corner margin piece lower left with part of a printers mark \"nationalized and government controlled industries and businesses in the DDR German paper. \", impeccable mint never hinged, unsigned, photo expertize George Schoenherr BPP: \"genuine and immaculate\", Michel 300.- (the complete printers mark appraises 1.200.-)