Netherlands
Willem I gold 10 Gulden 1840 MS64★ NGC, Utrecht mint, KM56, Fr-327. Displaying definite reflectivity and frosty devices, this nearly-gem example boasts glossy fields that, other than a few minor wisps, are clear of any major distractions. Visually stunning, as is confirmed by the star designation given by NGC, and a choice example of this final year in the series.
Estimate: 800-1200 USD