George III (1760-1820), Pre-1816 issues, Proof Farthing, 1799 (late Soho), in bronzed-copper, edge obliquely grained, 6.28g/6h (Cooke 293; BMC 1270 [KF 7]; Selig –; S 3779). A few light surface and rim marks, otherwise about as struck £200-£300