Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, Grade 3. KM-10. 14.09 grams. Decent full shield (worn but not corroded), heavily corroded cross, spotty toning. With Fisher tag and photo-certificate #80M-3909. Recovered from: Santa Margarita, sunk in 1622 west of Key West, Florida
Estimate: $300-450