1948 - 1952, buildings, specialized unused / mint never hinged and cancelled collection, as well numerous good values, multiples, margin copies, double impression, a multiplicity at perforation varieties with unperforated stamps, on one side and two-sided unperforated stamps, double perforation, perforation varieties, shifted comb strokes, perforations failures, large and small stamps, as well protection lines, plate numbers, Retouch, plate flaw, in addition to it covers, cards and postal stationery, within a long collector life with a lot of meticulousness compiled collection, in this richness hardly ever offered, mounted on pages in the box