Lot no. 6553

1919, framed Z on 3k. with inverted surcharge as block of ten with sheet margins, mint never hinged, Ashford/Tchilinghirian lists this item with an “?”. It is no 163 in the Ceresa checklist of genuine stamps. Two rows of a quarter sheet is an astounding large quantity of this rare stamps, which is normally hard to find as a single stamp, signed Serebrakian and certificate Berger BPP (2019)