Watch List notes:

George III (1760-1820), Third Issue, Proof Halfpenny, 1799, in gilt copper, 'Early Soho', laureate bust right, K • to truncation, rev. Britannia seated left, holding olive branch and trident, ship in left field, edge centre grained, 12.93g, 6h (BMC [Peck] 1243 [KH22]; Spink 3778), some very minor wear to high points and cabinet friction in otherwise residually brilliant fields, a bold extremely fine.

Estimate: £300 - £400