Great Britain
William IV gold Proof Sovereign 1831 PR63 Ultra Cameo NGC, Royal mint, KM717, Fr-383a. Plain edge variety. A wholly glamorous example issued for the 1831 proof sets with deep pools of reflectivity that produce a striking cameo effect on the devices. One minor obverse milk spot and a few insignificant wisps are noted in the grade, but the overall appearance of this select proof is outstanding. A scarce offering and a conditional rarity.
Estimate: 12000-14000 USD