Sierra Leone, Sierra Leone Co, Proof Cent, 1791, in bronzed-copper, edge plain, 12.88g/6h (Vice 9A; KM. 1). Extremely fine
£90-120

Provenance: S.M. Damon Collection, Doyle’s Auction (New York), 23 March 2006, lot 2279.

With NGC slab label, graded PF62 BN