10 Zl. Buildings castle Cracow unperforated, mint never hinged with full original gum, entirely unsigned, all side evenly well wide margins, faultless condition, of the unperforated remained stamp existed only an only sheet to 25 pieces, of these only a few have become known are, rarity and exhibit highest order in perfect condition, photo certificates Swiss BPP (2013) and Pfeiffer BPP (2016) "the test specimen is genuine and in perfect quality. ", Michel 5.000.-