Great Britain
George III Shilling 1820 MS65 NGC, Royal mint, KM666, S-3790. The highpoints seem to be almost unblemished with attractive tones baby blue, light canary, pastel sea green, and some magentas exist on the obverse. The reverse is similar but a toned a bit darker and both side are sharply struck.
HID02901242017
Estimate: 400-600 USD