Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer G to right, mintmark M to left (M-G).Nesmith-50c; Cal-81; S-M5; KM-18.13.63 grams.Dark but choice (AU), struck on a large flan with fully legible legends, nicely toned highlights.
($400-600)