Lot of five Potosi, Bolivia, cob 8 reales, Philip III, assayers not visible, all Grade 4. KM-10. 81.36 grams total. Fairly intact but most with heavy corrosion, clear shields and crosses, one with quadrants of cross transposed. With Fisher certificates #135900, 148078, 149087, 206696 and 00A-57443. SEE INTERNET FOR PHOTO. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $750 - 1100)