Mexico City, Mexico, cob 8 reales, Philip IV, assayer not visible (P). S-M19; KM-45. 26.18 grams. Unusual shape with tiny edge-split, full but weak shield and cross, clear denomination and trace of 4 of date, minimal surface corrosion. With Blanchard wallet-type certificate. Recovered from: Concepcion, sunk in 1641 off Hispaniola (Estimate: $100 - 150)