20 on 24 Pfg five year plan brownish carmine, new edition watermarked XII, on correctly franked cover from "STRALSUND 26.7.55" to Wolmirstedt, well perforated, top right small corner perforation crease, cover small margin defects, an on entire pieces very rare stamp, only a few pieces recorded, photo expertize King BPP (2014), Michel unpriced