Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer T, Grade 1 quality but Grade 3 in database, certificate missing. S-P21; KM-9. 12.32 grams. Round (smallish) flan with full shield and cross, clear assayer, light surface corrosion. With Fisher tag #264009. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
(300 - 450 USD)