Portugal
Luiz I gold 10000 Reis 1886 MS64 NGC, Lisbon mint, KM520. Mintage: 1,800. Lowest mintage for date in series. AGW 0.5228 oz.
https://coins.ha.com/itm/portugal/portugal-luiz-i-gold-10000-reis-1886-ms64-ngc-/a/3089-33163.s?type=CoinArchives3089
HID02906262019
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Estimate: 1000-1500 USD