Mexico City, Mexico, cob 8 reales, 162? D. S-M18a; KM-45. 26.35 grams. Urn-shaped flan (unevenly thick) with choice full shield, full but doubled cross, bold penultimate digit Z (2) of date but last digit too weak to discern, no corrosion. Recovered from: "Lucayan Beach Wreck," sunk ca. 1628 off Grand Bahama Island
Estimate: 200 - 300 USD