Mexico
Estados Unidos silver Reverse Proof Onza 2020-Mo PR70 NGC, Mexico City mint, KM639. Early Releases. An exceptional coin, this example is flawless and displays frosted fields with mirrored devices, which is usually the other way around for coins, making this coin delightfully unique.
https://coins.ha.com/itm/mexico/mexico-estados-unidos-silver-reverse-proof-onza-2020-mo-pr70-ngc-/a/65161-25234.s?type=DA-DMC-CoinArchives-WorldCoins-65161-01292023
HID02906262019
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