Great Britain
William IV (1830-37), Gold Proof Half-Sovereign, 1831. Struck on the small size flan, bare head right, legend and toothed border surrounding, GULIELMUS IIII D: G: BRITANNIAR: REX F: D: Rev. crowned quartered shield of arms in frame, ANNO 1831 below, edge plain, weight 4.00g (WR 267 R3; S.3830; Fr.383a; KM.716). Lightly toned, just a few wispy surface marks, tiny short nick on neck, otherwise practically as struck and rare. Value $4,000 - UP
The Latin legend translates as "William the Fourth by the grace of God, King of the Britons, Defender of the Faith."