Lot of five Potosi, Bolivia, cob 8 reales, Philip III, various assayers (where visible), all Grade-3 quality (10 to 12 points each), with hand-signed certificates from 1975 and 1977. KM-10. 88.10 grams total. Three solid (19 grams and higher), two more heavily corroded, but all with clear shields and crosses. With original, hand-signed photo-certificates from 1975 (4, Cape Coral Bank) and 1977 (1) numbered 507, 1524, 1555, 1601 and 2471. SEE INTERNET FOR PHOTO. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $1250 - 2000)