Watch List notes:

The Hardcastle Collection | PROOF 65 BROWN | Ireland, George III, Proof Farthing, 1806, in copper, Soho, laureate and draped bust right, rev. crowned harp, 4.31g, 6h (S.6622), a few small carbon spots and a minor flan flaw to rim, otherwise a brilliant proof with a lovely light brown tone, brilliant uncirculated, in NGC holder, graded PF65 BN (Cert. #5878624-019) [Tied 1 of 9 / 4 Finer].

Estimate: £100 - £150