Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer R to left, mintmark M to right (R-M), encapsulated NGC AU 58. Nesmith-74; CT-90; S-M7. 13.35 grams. Broad flan with full details, light and uneven toning, unusual variety missing the V of PLV in motto. From the "Golden Fleece" wreck (ca. 1550). (Estimate: $400 - 600)