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Machin's Mills & Related Pieces



Many of the copper coins in circulation during the 1780s-90s were counterfeits made at a site called Machin's Mills near Newburgh, New York. Thomas Machin and his partners made a specialty of producing fakes of whatever copper coins were being most widely accepted at the time. Since the popularity of each issue varied from one year to the next, he even overstruck the designs of one coin type on existing coins of another type to take advantage of this shifting favor! Machin's pieces were omnipresent in the late 1780s and helped to bring about a sharp reduction in value for all copper coins then circulating. Today, they are highly sought by collectors as historic relics.

NGC Auction Central Disclaimer

NGC Auction Central Disclaimer

Disclaimer: The auction prices realized listed in the NGC Auction Central are compiled from a number of independent, third party sources in the numismatic community which NGC believes to be reliable. The auction data listed by NGC may occasionally contain typographical or input errors that can result in incorrect prices realized appearing on the NGC website. Therefore, the prices realized listed in NGC Auction Central are designed to serve merely as one of many measures and facts that coin buyers and sellers can use in determining coin values. These prices are not intended, and should not be relied upon, to replace the due diligence and – when appropriate – expert consultation that coin buyers and sellers should undertake when entering into a coin transaction. As such, NGC disclaims all warranties, express or implied, with respect to the information contained in the NGC Auction Central. By using the NGC Auction Central, the user agrees that neither NGC nor any of its affiliates, shareholders, officers, employees or agents shall have any liability for any loss or damage of any kind, including without limitation any loss arising from reliance on the information contained in the NGC Auction Central.