In numismatics (coin collecting), a mule coin is a coin that has been struck with dies that were not intended to be used together.
Here’s a breakdown of what that means:
- Mismatched Dies: A mule coin occurs when the obverse (front) die of one coin is paired with the reverse (back) die of a different coin.
- Accidental Error: This is a type of minting error, often caused by human error during the die installation process. Instead of the correct dies being installed in the coining press, the wrong combination is used.
- Rarity and Value: Mule coins are generally quite rare because they’re the result of an error, and when the error is discovered, the incorrect dies are usually removed and the affected coins are often destroyed. This scarcity makes them highly sought after by collectors and can command high prices. The rarity also makes them the rarest type of error coin.
- Origin of the Name: The term “mule” is used to highlight the fact that the coin has two sides that don’t belong together, similar to a mule being the hybrid offspring of a horse and a donkey.
- 2000 Sacagawea Dollar / Washington Quarter Mule: This is one of the most famous and valuable U.S. mule errors. It was struck on a Sacagawea dollar planchet, but used the obverse die of a Washington state quarter and the reverse die of a Sacagawea dollar.
- 2000 Australian “mule” Dollar Coin: Features the head of Queen Elizabeth II (from a dollar coin) on one side and the Mob of Roos design (from a 50-cent coin) on the other.
- 2001-D Lincoln Cent Mule: Struck with a Roosevelt dime reverse die instead of the correct Lincoln Cent die.
- Two-Tailed Coins: These are a fascinating sub-category of mule coins, where both sides of the coin feature the same design (either two obverses or two reverses).
Important Note: It’s important to distinguish genuine mule coins from counterfeits, which can be created by altering legitimate coins to make them appear like mules. If you believe you’ve found a mule coin, it’s recommended to have it appraised by a professional coin dealer or a reputable grading service for authentication.
Are mule coins worth anything?
Mule coins are typically rare because they are the result of minting errors. This rarity can make them highly valuable to collectors, especially if the error is discovered before many such coins are released into circulation.
How do I identify a $1 mule coin?
Also known as the obverse. Of a 10-cent coin as As a result you have a distinct double rim on the coin. And it is a very very popular item.
What does a mule error coin look like?
Mule coins are coins that have been mistakenly struck with another coin’s obverse or reverse. The result is a specimen that looks normal on one side and like a completely different coin on the other.
How much is the $1 mule coin worth?
From my experience, Nemtsas said the four-figure sum for the 2000 $1 mule is usually reserved for those in immaculate condition. Circulated versions of this coin can fetch $200-$300.