Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 3. KM-9. 5.12 grams. Thin and somewhat fragmentary but with choice full shield and toned in crevices. With original Fisher tag and certificate 86A-188778, pedigreed to the J.P. Silberman Estate.Recovered from: Atocha, sunk in 1622 west of Key West, Florida.

Estimate: $400 - $600