Great Britain
George III copper Proof Pattern "Hercules" Crown 1820 PR65 Brown NGC, ESC-2059 (R2; prev. ESC-244), L&S-212. By J. P. Droz after Monneron's 1792 pattern by Dupré. Darkened chestnut coloring with razor-sharp detail, fresh fields, and a bit of flash round out this spectacular offering. An unmistakable gem, and conditionally scarce as such.
The stunning design was inspired by a smaller-sized pattern made in France circa 1791-92 by the firm of Monneron Freres but never coined commercially as it was proscribed by French law of 1793 prohibiting the use of privately created patterns for money. Jean-Pierre Droz, a Swiss engraver of dies for coins and of plates for paper currency, copied the concept of the originals by Augustin Dupré and engraved the set of dies used to strike this pattern for Boulton and Watt at the Soho Mint, Birmingham where this was made.
https://coins.ha.com/itm/great-britain/great-britain-george-iii-copper-proof-pattern-hercules-crown-1820-pr65-brown-ngc-/a/3085-31620.s?type=CoinArchives3085
HID02906262019
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Estimate: 2600-3000 USD