Watch List notes:

Mexico City, Mexico, cob 8 reales, (16)28/7(D), rare. S-M18a; KM-unl (type 45). 24.01 grams. Full 8/7 of date, also clear mintmark and denomination, full shield and cross, but with surface corrosion all over and reverse toned black, lots of variation in thickness (as made). Recovered from: "Spice Islands wreck," sunk ca. 1629 off Southeast Asia (Estimate: $300 - 450)