Mexico
Estados Unidos silver Proof "Monarch Butterfly" 100 Pesos 1987-Mo PR69 Deep Cameo PCGS, Mexico City mint, KM537. Mintage: 28,500. World Wildlife Fund series.
https://coins.ha.com/itm/mexico/mexico-estados-unidos-silver-proof-monarch-butterfly-100-pesos-1987-mo-pr69-deep-cameo-pcgs-/a/65163-98218.s?type=DA-DMC-CoinArchives-WorldCoins-65163-03262023
HID02906262019
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