Mexico City, Mexico, cob 4 reales, Philip II, assayer F (oMF to left, 4 to right). S-M12; KM-36; CT-329. 9.10 grams. Nice full shield and cross, lightly to moderately corroded all over, darkly toned. With photo-certificate. Recovered from: "Rill Cove wreck," sunk ca. 1618 off Cornwall, England (Estimate: $100 - 150)