Netherlands
Willem I gold 10 Gulden 1828-B MS61 NGC, Brussels mint, KM56.
https://coins.ha.com/itm/netherlands/netherlands-willem-i-gold-10-gulden-1828-b-ms61-ngc-/a/3076-34410.s?type=CoinArchives3076
HID02906262019
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Estimate: 300-500 USD