Potosi, Bolivia, cob 8 reales, 1620 T, Grade 1. S-P21; KM-10; Cal-929. 25.36 grams. Bold ZO (20) of date and mintmark P, good full cross and shield, nearly full crown, some corrosion around edge, toning in crevices. With Fisher tag and photo-certificate 206904. From: Atocha, sunk in 1622 west of Key West, Florida
($800-1200)