Potosi, Bolivia, cob 8 reales, 1654E, dot-PH-dot at top.S-P37a; KM-21; Cal-Type 334.26.97 grams.Bold full pillars and cross but with light corrosion and some dark horn silver, all three dates and mintmarks and assayers. From: Maravillas, sunk in 1656 off Grand Bahama Island
($175-250)