Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer R to left, mintmark M to right (R-M). Nesmith-74; S-M7; CT-90. 13.30 grams. Broad-flan XF+ with full details except some legend, slightly doubled pillars and shield, dark all over as probably salvaged from the "Golden Fleece wreck" (ca. 1550). ($400-600)