Potosi, Bolivia, cob 8 reales, Philip III, assayer R (curved leg), Grade-2 quality but tag and certificate missing. S-P15; KM-10; CT-126 . 22.73 grams. Very broad flan with full shield and cross-and-tressure, some legend, all despite moderate surface corrosion, typically silvery. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $100 - 150)