Watch List notes:

Potosi, Bolivia, 8 soles, 1859 F.J., with "Po. 400 Gs." below bust, very rare, NGC MS 61 ("top pop"). KM-138.1. Lustrous and well struck, with pretty rainbow toning (light) on reverse but light hairlines on Bolivar side, also with interesting struck-through-fiber error on reverse, considered the rarest of several varieties for this date, currently tied with the Lissner example for top grade in the NGC census but with much better strike than that coin has.

Estimate: $2000 - $3000