George III (1760-1820), Pre-1816 issues, Proof Twopence, 1797 (late Soho), in bronzed-copper, from the same dies as previous, edge plain, 59.15g/6h (BMC 1068 [KT 2]; Selig 1264; S 3776). Trifling marks in fields and a tiny rim nick on reverse at 3 o’clock, otherwise extremely fine and brilliant, rare £700-900