Brazil
Maria I & Pedro III gold 6400 Reis 1786-B AU58 NGC, Bahia mint, KM199.1, LMB-491. Marked by beaming, lemon-gold luster and only moderate rub to the dual portraits of the joint monarchs. AGW 0.4229 oz.
https://coins.ha.com/itm/brazil/brazil-maria-i-and-pedro-iii-gold-6400-reis-1786-b-au58-ngc-/a/3091-30323.s?type=CoinArchives3091
HID02906262019
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Estimate: 700-900 USD