BOLIVIA. Cob 8 Reales, ND (1618-21)-PT. Potosi Mint. Philip III. FINE Details. Sea Salvaged. KM-10. Weight: 21.5 gms. Mostly clear details on the shield side, with the mintmark and assayers mark very evident. Includes original Melvin Fisher certificate from Treasure Salvors, Inc., coin number 85A-180159. Ex: <em>Atocha </em>shipwreck, sunk on 6 September 1622 off the coast of what is now the Florida Keys.