Brazil
João V gold 6400 Reis 1746-R AU55 NGC, Rio de Janeiro mint, KM149, LMB-221. Light circulation friction over the surfaces establishes the assigned designation, the devices themselves near-full and embellished by abundant golden luster.
https://coins.ha.com/itm/brazil/brazil-joao-v-gold-6400-reis-1746-r-au55-ngc-/a/3085-31247.s?type=CoinArchives3085
HID02906262019
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Estimate: 1500-2000 USD