Great Britain
William IV gold Proof 1/2 Sovereign 1831 PR63 Cameo PCGS, Royal mint, KM716, S-3830, WR-267 (R3). Plain edge. Some hairlines in the fields noted under magnification, accounting for the PR63 grade, which are possibly the result of being wiped lightly by a cloth a long time ago (back when it was acceptable to do such things). Lightly frosted surfaces with deeply mirrored fields give this coin a fantastic look in hand.
Estimate: 5000-6000 USD