Pof.71, Large numerals 50h red with part of CDS KRÁL. VINOHRADY, overprint type III.; very fine, Vrba certificate, expertized Mahr, rare stamp also as used!
Pof.75, Small numerals 20h red, right the bottom corner horizontal strip of 3 with krajovou ledge; mint never hinged, light allowed in horiz. perf, exp. Vrba, rare usage marginal ledges
Pof.88 production flaw, overprint PORTO 50/42h brown, block of four with very thin/light, almost to nezřetelným print overprint; mint never hinged, small minor gum fault, exp. Vrba, interesting and very unusual production defect!