Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 4. KM-9. 5.92 grams. Corroded and thin around the edges with some shield and cross detail showing. With original Fisher tag and certificate 86A-194332, pedigreed to the J.P. Silberman Estate. Recovered from: Atocha, sunk in 1622 west of Key West, Florida.

Estimate: $200 - $300