7 Coins in Your Pocket That Could Be Worth a Fortune

You might have a small treasure sitting in your pocket change or a forgotten coin jar. While most coins are only worth their face value, some rare errors made during the minting process can turn a common penny or quarter into a collector’s item worth hundreds or even thousands of dollars. This guide will walk you through seven specific, well-known error coins that you can actually find in circulation today.

First, What Is a Die Error?

Before we dive into the list, it helps to understand what we’re looking for. Most coin errors happen because of a mistake with the “die,” which is the metal stamp used to strike the design onto a blank coin. When a die is created improperly, is damaged, or wears out, it can produce coins with interesting and valuable mistakes. Now, let’s explore seven common coins that are known to have these rare errors.

1. The 1995 Doubled Die Lincoln Cent

This is one of the most famous and sought-after modern error coins. It’s a fantastic one to start with because the doubling is so dramatic and can often be seen with the naked eye, although a magnifying glass makes it much clearer.

What to Look For: The error is on the “obverse” or “heads” side of the coin. Look closely at the words “LIBERTY” and “IN GOD WE TRUST”. On a genuine 1995 Doubled Die Cent, these letters will appear clearly doubled, looking like they have a strong second impression right on top of the first. It’s not a faint blur; it’s a distinct and separated doubling.
Why It’s Valuable: A major mistake was made when creating the die for this coin, resulting in a very strong and noticeable error that slipped past inspectors at the Philadelphia Mint. Because many were found and publicized, it created a huge buzz in the coin-collecting community.
Potential Value: Depending on the coin’s condition, a 1995 Doubled Die Lincoln Cent can be worth between $20 and $50. If it’s in a brilliant, uncirculated condition, the value can be even higher.

2. The 1982 “No P” Roosevelt Dime

This is a fascinating and subtle error. In 1980, the Philadelphia Mint began adding a “P” mint mark to all coins it produced, except for the one-cent coin. However, in 1982, at least one die used to strike dimes was missing this “P” mint mark.

What to Look For: First, you need a 1982 Roosevelt Dime. Next, look on the “obverse” side of the coin for the small mint mark located just above the date. Dimes from this year should have a “P” for Philadelphia, a “D” for Denver, or an “S” for San Francisco. If your 1982 dime has no mint mark at all, you may have found this rare error. Be sure to check that it’s not just worn down.
Why It’s Valuable: This was a transitional error that occurred when the mint was implementing the new mint mark policy. It’s believed that a die intended for a different purpose was used by mistake, creating a small number of these error coins.
Potential Value: In circulated condition, these dimes can sell for $50 to $100. Uncirculated examples have sold for over $300, making it a significant find.

3. The 2004-D Wisconsin State Quarter (Extra Leaf)

The 50 State Quarters program created a lot of new collectors, and this is one of the most interesting errors from the series. It’s an error that is easy to identify once you know exactly where to look.

What to Look For: Flip the quarter over to the “reverse” or “tails” side, which features a cow, a wheel of cheese, and a husk of corn. Look very closely at the left side of the corn husk. On the error coin, you will see an extra leaf pointing down on the lower part of the husk. Another variety shows an extra leaf pointing up on the upper part. Both are valuable.
Why It’s Valuable: The cause of this error is still debated by experts. Some believe it was an intentional alteration to the die by a mint employee, while others think it was an accidental gouge. Regardless, it created a distinct and collectible variety.
Potential Value: These quarters are highly sought after. Even in circulated condition, one of these “Extra Leaf” quarters can be worth $50 to $100. Uncirculated versions can command prices of $200 or more.

4. The 1999 “Wide AM” Lincoln Cent

This is another subtle error on a Lincoln penny that requires a close look. The key is the spacing between the letters “A” and “M” in the word “AMERICA” on the back of the coin.

What to Look For: You need a 1999 Lincoln Cent. Look at the word “AMERICA” on the reverse side. On a normal 1999 cent, the “A” and “M” are very close together, almost touching. This is called the “Close AM” variety. On the rare error coin, there is a clear, wide space between the “A” and “M.” This is the “Wide AM” variety.
Why It’s Valuable: The U.S. Mint used a different reverse die intended for proof coins (special collector coins) to strike some regular circulation coins by mistake. This proof die had the “Wide AM” design.
Potential Value: A circulated 1999 “Wide AM” cent can be worth $5 to $20. However, uncirculated examples can be worth several hundred dollars. It’s worth checking all of your 1998, 1999, and 2000 pennies for this error.

5. The 1955 Doubled Die Lincoln Cent

This is the king of all doubled die coins and the one that made many people start looking at their change. While finding one today is incredibly rare, it’s not impossible, as some could still be sitting in old collections or jars.

What to Look For: The doubling on this coin is the most dramatic of any on this list. On the “obverse” side, the date “1955” and the words “LIBERTY” and “IN GOD WE TRUST” are all extremely doubled. The effect is so strong it almost looks like a blurry photograph.
Why It’s Valuable: This was a major minting error that was caught after about 20,000 to 24,000 coins had already been minted and mixed in with a regular batch. The U.S. Mint decided it wasn’t worth the cost to try and retrieve them, so they were knowingly released into circulation.
Potential Value: This is a very valuable coin. Even in heavily worn condition, a 1955 Doubled Die Cent is worth around $1,000. Uncirculated examples can sell for tens of thousands of dollars.

6. The 2005 “In God We Rust” Kansas State Quarter

This error is less about a die mistake and more about something that happened to the die while it was in use. It’s a humorous and popular error that is easy to spot.

What to Look For: You’ll need a 2005 Kansas State Quarter. Look at the motto “IN GOD WE TRUST” on the obverse side. On the error coin, the “T” in “TRUST” is very weak or completely missing, making the motto appear to read “IN GOD WE RUST”.
Why It’s Valuable: This error was caused by a grease-filled die. When grease and debris clog a small area of the die (like the crossbar of the “T”), that part of the design isn’t struck onto the coin. While grease-filled die errors are common, this specific one is popular due to its funny phrasing.
Potential Value: Because it’s a popular novelty, these quarters can sell for $5 to $20 in good condition, with some of the best examples fetching up to $50.

7. The 1972 Doubled Die Obverse Lincoln Cent

This is another excellent example of a doubled die cent that is more common than the legendary 1955 version but still quite valuable and exciting to find.

What to Look For: The doubling is visible on all elements of the “obverse” side of a 1972 Lincoln Cent. The most prominent doubling can be seen on the words “LIBERTY” and “IN GOD WE TRUST”, as well as the date “1972”. It’s not as dramatic as the 1955 error, but with a good magnifying glass, the separation in the letters is very clear.
Why It’s Valuable: Just like the other doubled die coins, this was caused by an error in the creation of the die hub, leading to a distinct and collectible variety that was released into circulation from the Philadelphia Mint.
Potential Value: This is a significant find. A circulated 1972 Doubled Die Cent can be worth $100 to $500, depending heavily on its condition.

Frequently Asked Questions

What tools do I need to spot these errors? While some major errors can be seen with the naked eye, a good quality magnifying glass or a jeweler’s loupe with 5x to 10x magnification is your most important tool. A good light source is also essential.

What should I do if I think I’ve found an error coin? First, be careful not to clean the coin. Cleaning can severely damage its surface and reduce its value. Handle it by the edges to avoid fingerprints. You can compare it to high-quality photos online from reputable sources like the Professional Coin Grading Service (PCGS) or Numismatic Guaranty Corporation (NGC) to confirm. For very valuable coins, consider getting it authenticated by a professional grading service.

Does the coin’s condition really matter? Absolutely. A coin’s condition, or “grade,” is one of the biggest factors in determining its value. An uncirculated coin that looks brand new will almost always be worth significantly more than the same coin that is worn, scratched, or damaged.