Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer not visible, Grade 3. KM-8. 2.28 grams. Thin from corrosion that removed a tangential portion of the edge as well, still with fairly well-detailed shield and cross. With original Fisher tag and photo-certificate 5348 from 1982. From: Santa Margarita, sunk in 1622 west of Key West, Florida
($300-450)