Watch List notes:

Potosi, Bolivia, cob 4 reales, 1619T (rare in this denomination), Grade-1 quality but Grade 3 on the certificate (unofficial replacement), with original tag. 13.46 grams. Odd-shaped flan with bold full P+T, full date and king's name PHYLYPVS in legend, full shield and cross despite some weak areas, no corrosion (full weight). While this date is common in 8R, it is apparently rare in 4R, as this is only the second specimen we have handled. With Fisher tag #185630 and Historic Research and Certification replacement photo-certificate. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300 - 450