Bolivia. Shipwreck Cob 8 Reales, ND (Potosi). Philip III, 1598-1621. Assayer, Not visible. Weight 19.30 grams. Coin recovered from the Nuestra Senora De Atocha, shipwreck of 1622. With Certificate (#145460) of Authenticity. Grade Three. Details of Good. Estimate Value $100 - 150