Mexico City, Mexico, cob 8 reales, Philip IV, assayer not visible. S-M18a; KM-45. 27.08 grams. Broad flan (rounder and more even in thickness than usual) with much flatness in peripheries but nearly full shield and cross, no corrosion, trace of partial date (1624?). Recovered from: "Lucayan Beach Wreck," sunk ca. 1628 off Grand Bahama Island
Estimate: 200 - 300 USD