Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer Q, Grade 2. S-P17; KM-9; Cal-770. 12.78 grams. Bold assayer Q to left of full but weak shield, bolder full cross, minimal corrosion, edge-crack. With original Fisher certificate 85A-147190 (tag missing). Recovered from: Atocha, sunk in 1622 west of Key West, Florida


Estimate: 1000 - 1500 USD