MEXICO, Mexico City, silver medal, 1971, Mexico Numismatic Society / 4 reales of Charles-Joanna "First Coinage of the Americas", NGC MS 67 DPL. Grove-1102a. Struck by the Mexico City Mint for the Mexico Numismatic Society to commemorate several historical Mexican coinage designs. Bright piece with frosty reproduction of the first coinage minted in the Americas, outer rim quite flashy and prooflike.