Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer R (curved leg), Grade 1. S-P15; KM-9; CT-244. 13.09 grams. Corrosion-free, with good full shield and cross (the latter crisply detailed), lightly toned. With Fisher tag and certificate #221225. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($500-750)