Potosi, Bolivia, cob 2 reales, Philip III, assayer not visible, Grade-2 quality but Grade 4 on certificate. KM-8. 6.15 grams. Very odd shape with deep, right-angle split in edge (does not appear to be cut or corroded away), choice full shield and cross, light corrosion on edge only. With Fisher certificate #164639. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $300 - 450)