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9 of the Most Valuable State Quarter Errors Worth Money

Collecting state quarters can be both a hobby and a profitable endeavor, especially if you know how to spot valuable errors. State quarter errors arise from mistakes during the minting process, ranging from subtle variations to glaring anomalies that make each coin unique and highly sought after by collectors. These errors can significantly elevate a coin’s value beyond its face worth. Here’s a comprehensive exploration of some of the most valuable state quarter errors that could enrich your collection:

Types of State Quarter Errors

State quarter errors typically fall into three primary categories:

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Planchet Errors: These errors occur during the preparation of the coin blanks (planchets). They include using the wrong metal composition, incomplete blanks, clipped planchets that affect the coin’s shape, or even blanks that are incorrectly sized for the intended coin denomination.

Die Errors: Mistakes happen during the creation or use of the dies, which are the metal stamps used to imprint designs onto coins. Die errors can include double strikes, where the design is repeated on the coin, off-center strikes that misplace the design elements, or misaligned dies that cause incomplete designs.

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State Quarter Errors

Strike Errors: These errors occur during the striking of the coin, where the planchet is struck improperly by the dies. Examples include off-center strikes that leave part of the design off the coin, multiple strikes that overlap or double the design, or even strikes on the wrong side of the coin planchet.

Valuable State Quarter Error Coins

2005-P Minnesota Quarter with Extra Tree Mint Error

Some 2005-P Minnesota Quarters minted in Philadelphia exhibit an additional set of trees near the state outline.

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This error is easily identifiable with a magnifying glass and is highly valued for its rarity and distinct appearance.

1965 SMS Washington Quarter Broadstruck

Special Mint Set (SMS) quarters from 1965 occasionally show broad striking errors, where the design extends beyond the intended boundaries.

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State Quarter Errors

These coins are noted for their reflective surfaces and broad appearance, making them popular among collectors.

2004-D Wisconsin State Quarter Error Coin with Extra High Leaf

During minting, some 2004-D Wisconsin State Quarters were struck with an extra high leaf next to the corn design.

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This error adds an aesthetic appeal to the coin and increases its value due to its rarity and unique variation.

2004-D Wisconsin Mint Mark Quarter with Extra Low Leaf

Another variation of the Wisconsin State Quarter error involves a low leaf on the reverse side of the coin, near the corn design, without the accompanying mint mark.

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Collectors prize this error for its unusual appearance and the minting mistake that sets it apart from standard issues.

2009-D District of Columbia Double Die State Quarter Error

Minted in Denver, the 2009 District of Columbia State Quarter features a double die error, with duplicated design elements such as the word “Ellington.”

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State Quarter Errors

Double die errors are exceptionally rare and highly sought after for their distinctiveness and scarcity.

1999-P Connecticut Quarter Feeder Finger Coin Error

This error involves issues with the feeder fingers during minting, resulting in unique imperfections on the coin’s surface.

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Such errors are rare and fetch high values among collectors due to their scarcity and the intriguing story behind their production.

2002-P Indiana Quarter Struck on Dime Planchet

In 2002, some Indiana Quarters minted in Philadelphia were mistakenly struck on dime planchets, resulting in smaller-than-usual coins with incomplete designs.

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These coins are prized for their rarity and the minting error that affected their size and appearance.

1999-P Susan B. Anthony Dollar/Georgia Quarter Hybrid

A notable minting error occurred in 1999 when Susan B. Anthony dollar designs were mistakenly struck on Georgia State Quarters, creating a hybrid coin with elements of both designs.

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State Quarter Errors

These coins are highly valued for their dual denomination and the rarity associated with such minting mistakes.

2000-P Maryland Quarter/Dime Hybrid

Similarly, some Maryland Quarters from 2000 were struck on dime planchets, resulting in smaller coins with a blend of designs from both coins.

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The rarity of these coins, combined with the unique blend of designs, makes them valuable and sought after by collectors.

Conclusion

Investing in state quarter errors can be a rewarding pursuit for collectors interested in numismatics. These errors not only add rarity to your collection but also tell unique stories of minting mishaps and variations in coin production. Whether you’re a seasoned collector or just starting out, identifying these valuable state quarter errors can lead to exciting discoveries and potentially lucrative investments.

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FAQs about State Quarter Errors

What are state quarter errors?

State quarter errors refer to mistakes that occur during the minting process of state quarters, resulting in coins that deviate from the intended design or quality standards. These errors can vary widely in nature, from minor anomalies to significant deviations that make each coin unique.

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Why are state quarter errors valuable?

State quarter errors are valuable to collectors primarily due to their rarity and uniqueness. Collectors seek these error coins because they add diversity to their collections and can be harder to find than standard minted coins. The scarcity of these errors increases their desirability and potential market value.

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How can I identify state quarter errors?

Identifying state quarter errors requires careful observation and knowledge of common types of errors. Some errors are visible to the naked eye, such as off-center strikes or missing mint marks, while others may require a magnifying glass or even a microscope to detect subtle anomalies in the design or striking process.

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Where can I find state quarter error coins?

State quarter error coins can be found through various channels:

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  • Circulation: Occasionally, error coins enter circulation and can be found in everyday transactions. However, finding them this way is rare.
  • Coin Shows: Numismatic events and coin shows often feature dealers who specialize in error coins, offering a chance to view and purchase these unique pieces.
  • Online Auctions: Platforms like eBay and specialized numismatic auction sites frequently list state quarter error coins for sale.
  • Coin Dealers: Establishments that specialize in rare coins and numismatics may have state quarter errors available for purchase.

Do all state quarter errors increase a coin’s value?

Not all state quarter errors automatically increase a coin’s value. The value of an error coin depends on factors such as the type of error, its rarity, condition, and demand among collectors. Some errors may enhance a coin’s value significantly, while others may have minimal impact or even decrease its value if they affect the coin’s aesthetics or structural integrity.

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How do state quarter errors affect coin grading?

State quarter errors can affect coin grading in several ways. The severity and type of error can influence the coin’s overall grade and condition assessment. For instance, minor errors may still allow a coin to achieve a high grade if they do not detract significantly from its appearance or quality, whereas more noticeable errors could lower the grade.

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What should I do if I find a valuable state quarter error coin?

If you believe you have found a valuable state quarter error coin, it is advisable to take the following steps:

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  • Authentication: Have the coin authenticated by a reputable coin grading service or numismatic expert to verify its authenticity and confirm the type of error.
  • Grading: Get the coin professionally graded to assess its condition and determine its market value accurately.
  • Documentation: Keep detailed records of the coin’s discovery, authentication, and grading process for future reference and potential sale.

Are state quarter error coins legal to own and sell?

Yes, state quarter error coins are legal to own and sell. They are considered collectible items and are traded within the numismatic community through legal channels such as auctions, coin shows, and licensed coin dealers. It is essential to adhere to local laws and regulations regarding the sale and purchase of collectible coins.

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Can I sell state quarter error coins for a profit?

Yes, selling state quarter error coins can be profitable, especially if they are rare and in demand among collectors. The value of error coins can vary widely based on market trends, collector interest, and the specific attributes of the coin. Online auctions, specialized numismatic auctions, and reputable coin dealers are common avenues for selling valuable state quarter error coins.

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What are some examples of valuable state quarter errors?

Valuable state quarter errors include a wide range of anomalies and deviations from standard minting practices:

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  • Double Strikes: Coins that have been struck multiple times by the dies, resulting in overlapping or doubled design elements.
  • Off-Center Strikes: Coins where the design is not properly centered on the planchet, leaving part of the design off the coin’s surface.
  • Missing Mint Marks: Coins that lack the mint mark, which indicates where the coin was minted.
  • Planchet Errors: Errors related to the metal blanks used for coin production, such as incomplete planchets, clipped planchets, or planchets of the wrong composition.
  • Die Varieties: Coins with variations in the design due to differences in the dies used during the minting process.
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