Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer M, Grade 3. S-P18; KM-8; Cal-628. 3.01 grams. Nearly full shield and cross and discernible assayer despite heavy corrosion, nicely toned. With Fisher tag and certificate #202518.Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($300-$450)