3 Coin Mistakes That Could Skyrocket Your Coin’s Value

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Rare coins aren’t just pieces of history—they can also be surprisingly valuable. While many people associate coins with their age or metal composition, some of the most coveted coins feature unintentional mistakes from the minting process. These errors, rather than detracting from the coin’s value, often make it a collector’s dream. This article dives into three of the most exciting coin errors: double-die errors, off-center strikes, and wrong planchet errors, offering a glimpse into why they’re so highly sought after by numismatists and collectors alike.

Overview of Major Coin Errors

Type of ErrorWhat It IsFamous ExampleEstimated Value
Double-Die ErrorCoin struck twice with misaligned impressions1955 Double-Die Lincoln Cent$1,000–$20,000
Off-Center StrikeCoin’s design is incomplete or misalignedExtreme off-center coinsUp to $5,000 or more
Wrong Planchet ErrorDesign struck on the wrong type of coin blankPenny on a dime’s silver blankThousands of dollars

1. Double-Die Errors: A Numismatic Favorite

Double-die errors occur when a coin is struck twice with slight misalignment between the two strikes, resulting in doubled impressions. This can occur on any part of the coin, including the date, lettering, or design elements, making them particularly appealing to collectors. These errors are often easy to spot, even without a magnifying glass.

Famous Double-Die Coins:

  • The 1955 Double-Die Lincoln Cent is one of the most famous examples, with noticeable doubling on both the date and the inscriptions. In good condition, it can fetch between $1,000 and $20,000.
  • Another well-known coin with this error is the 1969-S Lincoln Cent, a rarer version that, in mint condition, has sold for more than $30,000.

Because double-die coins are visually striking and not terribly common, they hold a strong appeal for both seasoned collectors and casual hobbyists alike. If you happen to have old coins lying around, it’s worth taking a second look—they might hide a valuable mistake.

2. Off-Center Strikes: Unique and Eye-Catching

An off-center strike happens when a coin is not properly aligned during the minting process. This misalignment causes parts of the design to be incomplete or missing altogether. The result is a coin with a skewed or imbalanced appearance, making it an immediate eye-catcher.

Why They’re Valuable: The value of off-center coins depends on how dramatic the misalignment is. While a slight misalignment might not add much to the coin’s value, coins with extreme off-center errors, where large portions of the design are absent, can sell for thousands of dollars. In some instances, particularly dramatic examples have sold for over $5,000 at auctions.

Collectors love off-center strikes for their uniqueness and because they offer a fascinating glimpse into how the minting process can sometimes go awry.

3. Wrong Planchet Errors: Unexpected and Rare

Wrong planchet errors occur when a coin is struck on the wrong type of metal or blank, often leading to a mismatched design. For example, a penny might be minted on a silver blank meant for dimes, or a quarter’s design might appear on a nickel’s copper blank.

Notable Examples:

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