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What Are Off-Metal Coins, and Why Do They Exist?

While most coins in circulation appear uniform and free from errors and blemishes, some occasionally emerge from the mint with misspellings, off-center strikes, unintentional indentions, and other mistakes. Coins struck using a different metal alloy than the initially intended one are known as off-metal coins. Here’s a look at how off-metal coins get made and why they’re so special to coin collectors.

Unintentional Off-Metal Coins

Off metal one cent coin

Off-metal coins are often, but not always, the result of a mistake at the mint. For example, if blanks made of one metal get accidentally mixed up with blanks of another metal in a hopper, a certain number of these coins will be struck along with a larger amount of coins made of the correct metal. A famous case is the 1943 Bronze Cent, which was supposed to be made of zinc-coated steel. However, a few leftover bronze blanks made their way into a hopper filled with steel planchets, and a small line of rare and valuable off-metal coins was born.

Intentional Off-Metal Coins

Off-metal coins are sometimes created intentionally, and the results are often just as unique and valuable to collectors. Some are produced during experiments with new alloys as the mint prepares to issue a new coinage. Other these coins are made specifically to be sold to rare coin collectors. The only way to know whether an off-metal coin has been produced intentionally or unintentionally is to know the history behind each specific model.

Value to Collectors

First and foremost, collectors especially prized off-metal coins because they’re strange, historically interesting, and often rare. Some off-metal coins are also precious and hard to come by. For example, only about 40 of the 1943 Bronze mentioned above Cent were made, and these coins can be worth between $45,000 and $1.7 million, depending on the quality and minting location. Unfortunately, 1943 Lincoln cents are frequently counterfeited because of their rarity and value. If you believe you have an authentic 1943 Lincoln penny, we recommend sending it to a third-party grading service to be certified, such as NGC or PCGS.

At Atlanta Gold & Coin Buyers, we buy and sell a wide variety of coins, including rare coins such as off-metal coins. Request an appointment to assess the value of your collection today by calling 404-236-9744.

Tony Davis
Tony Davis
Tony Davis is the owner of Atlanta Gold & Coin Buyers, a full service Atlanta based coin and bullion dealer specializing in buying, selling and appraising coins and coin collections of all types and sizes. Tony frequently writes on various economic and numismatic related topics affecting the coin and bullion markets and has been published on some of the industry’s leading websites, including Coin Week, the American Numismatic Association, Coin Collector, Coinflation, and Coin Auctions Help, just to name a few. Visit Atlanta Gold & Coin’s website at to obtain additional information on the products, services and educational resources offered by his company. Tony can be reached at or at 404-236-9744
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