Watch List notes:

Potosi, Bolivia, cob 1 real, 1668E, assayer to left of cross (rare). S-P37b; KM-unl (23 for Type); CT-unl. 3.18 grams. Large flan, minimal corrosion, defined cross, pillars, and two dates, rare juxtaposition of assayer and mintmark. With ROBCAR photo-certificate #M180154. Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador
(75 - 110 USD)