Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip IV, assayer not visible (1630s). KM-19a. 27.03 grams. Most of shield and cross despite much flatness, solid (no corrosion) and deeply toned. With certificate stamped by the presidential Commission of Underwater Archeology of the Dominican Republic. Concepcion, sunk in 1641 off Hispaniola

Estimate: $150-225