Potosi, Bolivia, cob 4 reales, Charles II, date and assayer not visible.KM-25.6.93 grams.Good full cross with bold mintmark to left, bold full pillars-and-waves with second mintmark at bottom-right and clear denomination 4 at top, but all other details worn away from corrosion (thin flan), well toned.With photo-certificate.Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador
Estimate: 100-150 USD