Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer T, Grade 1. S-P21; KM-9. 12.79 grams. Small, thick flan with bold full shield and cross, full assayer, nicely toned fields, minor surface corrosion. With Fisher tag and certificate #116513. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($600-900)