Not issued: 2 Kopecks postal stamp with black overprint in type IV from overprint field 10 - from this overprint type are only 4 examples possible, because the total edition of the stamps only 200 examples was, mint never hinged, very fine, expertized Mikulski, Pickenpack and photo expertize Tobias Huylmans BPP (2025) "genuine and immaculate"