Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer T, Grade 2. S-P21; KM-9. 12.79 grams. Well-detailed full shield and nice full cross-lions-castles on a somewhat oblong flan, minimal surface corrosion. With Fisher tag and certificate #142475 (mis-attributed to 8R and with incorrect weight). Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($400-600)