Watch List notes:

Potosi, Bolivia, cob 4 reales, (1)618T, Grade-1 quality but Grade 3 in database, certificate missing. S-P21; KM-9. 13.41 grams. Large and odd-shaped flan with irregular edge, clear assayer to left of nearly full shield, full cross with clear date in legend, no corrosion, mostly toned. With Fisher tag #261829. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
(400 - 600 USD)