Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer G to right, mintmark M to left (M-G), king's name as CHAROLVS, error IMDIARVM. Nesmith-50a; S-M5; CT-81. 13.33 grams. Broad-flan XF+ with full details, nice dark toning, traces of corrosion at very edge, interesting (but known) error in legend. ($600-900)