Lot of five Potosi, Bolivia, cob 8 reales, Philip III, various assayers (where visible), all Grade 3. KM-10. 92.99 grams total. Moderately corroded but still solid, with clear shields and crosses. With Fisher certificates #201967, 206941, 207456, 215790 and 222674. SEE INTERNET FOR PHOTO. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $1000 - 1500)