Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, Grade 4.KM-10; Cal-Type 165.17.81 grams.Clear cross and shield despite moderate to heavy corrosion.With original Fisher tags (paper and plastic) and photo-certificate #99A-57035. From: Atocha, sunk in 1622 west of Key West, Florida
($250-375)