Great Britain
William IV bronzed Proof Penny 1831 PR67 Brown NGC, KM707a, S-3845. An exquisite gem laden with maroon-tinged clay-red patination, hardly a mark of consequence to be found over the nearly pristine surfaces.
https://coins.ha.com/itm/great-britain/great-britain-william-iv-bronzed-proof-penny-1831-pr67-brown-ngc-/a/3089-32784.s?type=CoinArchives3089
HID02906262019
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Estimate: 2500-3000 USD