Lot 617
617
unused Block of Four 50c. black on emerald block of four with black handstamp, the lower left stamp showing variety handstamp inverted; one with tiny thin otherwise fine mint. ISC J81a, unpriced. Photo

Details
unused Block of Four 50c. black on emerald block of four with black handstamp, the lower left stamp showing variety handstamp inverted; one with tiny thin otherwise fine mint. ISC J81a, unpriced. Photo