Watch List notes:

Potosi, Bolivia, cob 8 reales, 1683 V. S-P39; KM-26; Cal-721. 26.79 grams. Virtually corrosion-free and deeply toned, with choice full pillars-and-waves and nearly full (slightly off-center) cross-lions-castles, three dates, two mintmarks and assayers, very choice for this wreck. Recovered from: Association, sunk in 1707 off the Isles of Scilly, southwest of England.

Estimate: $200 - $300