Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer A to right, mintmark M to left (M-A). Nesmith-58 type; Cal-131, S-M6; KM-18. 12.47 grams. Full legends and inner details, just some light to moderate corrosion toward the edge, light-gray silver in color, lustrous AU with full, well-struck legends. Recovered from: "Golden Fleece wreck," sunk ca. 1550 in the northern Caribbean.
