60. on 30 Kopecks workers, variety "double overprint", mint never hinged, very fine, extremely rare, signed Dr. Rommerskirchen et alia and photo expertize Walter Zirath ". the 2. overprint is about 1 mm left postponed. the condition is perfect, because the perforation for this issue is typical. from of this variety are only a few pieces known. ", Michel 2.500.- (undervalued)