Mexico City, Mexico, 4 reales, Charles-Joanna, "Early Series," assayer G at bottom between pillars, encapsulated NGC AU 50, ex-Rudman. Nesmith-11 / 11 type; S-M2; CT-69. 13.4 grams. Very broad flan with full details except for a few weak spots in the legend, lustrous, with some toning around details. Pedigreed to the Isaac Rudman collection (as stated inside the slab). ($1000-1500)