George III (1760-1820), Pre-1816 issues, Pattern Halfpenny, 1790 (late Soho), by J.-P. Droz, silver-plated on copper, laureate bust right, signature in field below bust, rev. Britannia seated left on globe, edge guilloche, 16.07g/6h (BMC – [dies of 974, DH 15]; cf. Selig 1338). Some discolouration, otherwise good very fine, extremely rare £300-400