Mexico
Estados Unidos silver Proof Onza 1990-Mo PR69 Ultra Cameo NGC, Mexico City mint, KM494.2. Mintage: 10,000.
https://coins.ha.com/itm/mexico/mexico-estados-unidos-silver-proof-onza-1990-mo-pr69-ultra-cameo-ngc-/a/61310-24522.s?type=DA-DMC-CoinArchives-WorldCoins-61310-05072023
HID02906262019
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