Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer L to left, mintmark M to right, NGC XF details / environmental damage. Nesmith-82; CT-86; S-M9. Broad flan with full legends and inner details, AU details but with light surface corrosion all over and not much contrast (gray toning). NGC #1528335-018. Recovered from: "Golden Fleece wreck," sunk ca. 1550 in the northern Caribbean
($400-600)