Sierra Leone
British Colony copper Proof "100/100" Dollar 1791 PR65 Brown NGC, Soho mint, KM6a, FT2b. Obv. Lion on a hilltop, with inscription, "Sierra Leone Company-Africa." Rev. Clasped white and black hands dividing the denomination, 100-100, with inscription, "One Dollar Piece." A stunning example, with a near-flawless strike, fully mirrored fields and even brown patina. The finest we have seen and very rare in this Gem condition, with only a single piece certified finer by NGC and PCGS combined.
Estimate: 6000-8000 USD