Watch List notes:

Mexico City, Mexico, cob 4 reales, Philip III, assayer D/F (ca. 1618). S-M18; KM-unl (37.2 for type). 13.59 grams. Nice full cross and shield, no corrosion (full weight) but some dark "horn silver," darkly toned all over, with clear oMD/F (scarce). Recovered from: "Lucayan Beach wreck," sunk ca. 1628 off Grand Bahama Island
($150-225)