Lot of five Potosi, Bolivia, cob 8 reales, Philip III, various assayers (where visible), Grade 3 (4) and Grade 4 (1). KM-10. 68.52 grams total. Moderately to heavily corroded, all with at least some edge-loss and one with corroded-through hole. With Fisher certificates #222665 and 230524 and HRC replacement certificates #189687, 202003 and 202012. SEE INTERNET FOR PHOTO. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $750 - 1100)