Watch List notes:

Potosi, Bolivia, cob 1 real, 1675+65E, rare. S-P37b; KM-unl.; CT-unl. 3.25 grams. Three dates, including full 4-digit date in legend and 75 between pillars, 65 below full cross, light surface corrosion only, toned, edge-split. Recovered from: Consolacion, sunk in 1681 off Isla Santa Clara, Ecuador

Estimate: $150