Watch List notes:

Potosi, Bolivia, cob 4 reales, (16)20(T), quadrants of cross transposed, Grade-2 quality but Grade 4 in database, certificate missing. S-P21; KM-9; CT-248. 12.55 grams. Corroded yet almost full shield and cross, clear final digit of date on reverse. With Fisher tag #166992. Recovered from: Atocha, sunk in 1622 west of Key West, Florida
(250 - 375 USD)