Watch List notes:

Potosi, Bolivia, cob 1 real, 1656E. S-P37a; KM-13; CT-1056. 3.08 grams. Choice full cross, good full pillars-and-waves, deeply toned, minimal corrosion but part of edge crude. Recovered from: Consolacion, sunk in 1681 off Isla Santa Clara, Ecuador

Estimate: $125