Potosi, Bolivia, cob 8 reales, (1)621T, Grade-3 quality but certificate missing. S-P21; KM-10. 19.25 grams. Moderately to heavily corroded but with good full shield and cross, full 21 of date, unusually toned. With Fisher tag #202026 (certificate missing) without date listed. Recovered from: Atocha, sunk in 1622 west of Key West, Florida ($150-225)