Potosi, Bolivia, cob 8 reales, 1649O, crown-alone countermark (common variety) on shield. S-P35; KM-19b; CT-506. 17.65 grams. Thin and crude from corrosion but with full shield and full countermark, edge corroded and split, dark patch on shield. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($175-250)