Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer O to right, mintmark oM to left (oM-O). Nesmith-110b; S-M10; CT-88. 13.54 grams. Broad-flan XF with full, bold details and rich, deep toning, much better than average for this assayer and quite attractive overall. ($400-600)