Watch List notes:

Mexico City, Mexico, cob 4 reales, Philip IV, assayer not visible. KM-38. 12.57 grams. Partial shield, full denomination 4, and nearly complete cross visible amidst dark surface encrustation. Recovered from: "Lucayan Beach wreck," sunk ca. 1628 off Grand Bahama Island.

Estimate: $150 - $225