Watch List notes:

*Sierra Leone Company, silver proof one dollar / 100 cents, 1791, obv., sierra leone company, africa in exergue, crouching lion on hilltop, rev., one dollar piece, clasped shaded and unshaded hands, '100' above and below, edge plain, 26.17g (Vice FT 2A; KM6), choice mint state, lightly toned, very rare. 40 examples struck by Matthew Boulton between 1793 and 1799.
(7000-9000 GBP)