Watch List notes:

WEST AFRICA, Sierra Leone, silver one dollar piece, 1791, 100 over 100, decimal system, plain edge (Vice FT2; KM.6). Uneven, attractive iridescent toning, underlying brilliance on the reverse, practically mint state or nearly uncirculated and very rare in this condition.

Ex Mark E.Freehill Collection, from Noble Numismatics Sale 72 (lot 2698).