Pof.56, Triangle 5h green, overprint type I.; hinged, Vrba certificate, exp. by Leseticky., Gilbert, Fischmeister, nice piece of this sought and rare stamps!
Pof.56, Triangle 5h green, type II overprint; exceedingly nice piece mint never hinged with perfectly centrovaným overprint and preserved perf, Vrba certificate, exp. by Gilbert., Mrňák and Lešetický, in this quality rare offer!
Pof.57A PI, Rectangle 2h brown-red, line perforation 12½, on both sides print overprint in/at normal position, overprints I. + type II.; mint never hinged, light bend in corner, exp. Vrba, Gilbert