Mexico City, Mexico, cob 8 reales, Philip IV, assayer P. S-M19; KM-45. 26.37 grams. Typical barrel-shaped flan with bold full shield and cross, no corrosion. With Blanchard wallet-type certificate and tag #88463. Recovered from: Concepcion, sunk in 1641 off Hispaniola (Estimate: $200 - 300)