Watch List notes:

Mexico City, Mexico, cob 4 reales, Philip III, assayer D, ex-Mikalow. S-M12; CT-329; KM-36. 13.02 grams Full oMD, full shield and cross, deeply toned, minimal corrosion. Alfred Mikalow was an early name in shipwreck salvage for having invented a socketed atmospheric diving suit in 1952 specifically for salvaging. Pedigreed to the Alfred Mikalow collection. Recovered from: "Lucayan Beach wreck," sunk ca. 1628 off Grand Bahama Island ($100-150)