Netherlands
Willem I gold 10 Gulden 1825-B MS63 NGC, Brussels mint, KM56.
https://coins.ha.com/itm/netherlands/netherlands-willem-i-gold-10-gulden-1825-b-ms63-ngc-/a/3076-34408.s?type=CoinArchives3076
HID02906262019
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Estimate: 400-600 USD