Watch List notes:

George III (1760?1820), Proof Halfpenny, 1806, struck in bronzed copper, late Soho, small laureate and draped bust right, brooch with two broken jewels, date below, reverse struck en medaille, Britannia seated left on rocks, ship to left, line under SOHO, edge grained (BMC 1363 KH36; S 3781). As struck. Encapsulated by NGC PF64 BN.