George III (1760-1820), Pre-1816 issues, Proof Halfpenny, 1806 (late Soho), in bronzed-copper, edge centre-grained, 9.15g/12h (BMC 1370 [KH 42]; Selig 1405; S 3781). Stain on obverse and graze on reverse, otherwise extremely fine or better £90-120

Provenance: Bt Baldwin 1998