Great Britain
George IV Proof Shilling 1821 PR63 Cameo PCGS, KM679, S-3810. Needle-sharp and overlaid with a fetching gunmetal patina containing strong traces of blue iridescence. A highly collectible example made yet more enticing by the presence of an appealing cameo contrast.
https://coins.ha.com/itm/great-britain/great-britain-george-iv-proof-shilling-1821-pr63-cameo-pcgs-/a/3089-32758.s?type=CoinArchives3089
HID02906262019
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Estimate: 1200-1500 USD