Potosi, Bolivia, cob 4 reales, 1663E, from the ca.-1671 Seville harbor wreck. S-P37a; KM-18; CT-755. 12.68 grams. Broad flan with full pillars and nearly full cross, flat peripheries, two dates (scarce), AVF details with minimal surface corrosion, dark toning in crevices. From an unidentified ca.-1671 wreck in Seville harbor. ($175-250)