Watch List notes:

Potosi, Bolivia, cob 1 real, 1675+65E, rare. S-P37b; KM-unl.; CT-unl. 1.67 grams. Good full pillars with bold date 75, nice full cross with 65 below, well centered but no peripheries, thin from corrosion, nicely toned. Recovered from: Consolacion, sunk in 1681 off Isla Santa Clara, Ecuador

Estimate: $100