Mexico City, Mexico, cob 4 reales, 1625/4 D, very rare. S-M18a; KM-unl (38 for type); Cal-unl. 12.92 grams. Practically corrosion-free and deeply toned, with full and bold Z5/4 of date (possibly 5/4/3)due to off-center obverse, full cross but with much peripheral flatness, interesting flan with four sharp points (one blunted and bent). Recovered from: "Lucayan Beach Wreck," sunk ca. 1628 off Grand Bahama Island
Estimate: 250 - 375 USD