IRELAND 1976 (VARIETY) 15P AMERICAN BICENTENARY PLATE BLOCK MISSING SILVER
15p Bicentenary of the American Revolution traffic light/plate block x 4 missing silver (face value, country name and inscription). The key positional piece from the discovery sheet in Roundstone, County Galway. Marginal inscriptions in red biro penned by the postal clerk when calculating what to charge for the stamps otherwise fine. Mint never hinged. Offered with Hamilton-Bowen certificate. SG394a; SC392b; MI343F; HBC226d; IRL788a
