Charles-Joanna, "Late Series"
Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer S to left, mintmark M to right (S-M), extremely rare, ex-Jones (Plate Coin).Nesmith-unl; Cal-unl; S-M8; KM-18.11.17 grams.Rarest assayer of the "Late Series" coins and unknown to Nesmith, less than ten known in this denomination and assayer-mintmark combination. XF details with contrasting toning, granular surfaces, very bold assayer and mintmark, two small edge-splits.Pedigreed to the Dr. Peter Jones collection, plated on page 105 of his book The First Coins of the Americas (2020) and to the Richard Long auction of September 1988 (lot #195).
Estimate: 2500-3750 USD