Coin collecting is a fascinating hobby that can lead to unexpected discoveries. Recently, a collector named Johnny Bowen found a rare error in a 1980 Lincoln Memorial Cent Proof coin from his United States Mint Proof Set. This coin features a unique “rotated die error,” a mistake made during the coin’s production. In this article, we will explain what makes this error important, what a rotated die error is, and how rare coins like this one can become valuable collector’s items.
A Rare Find in a 1980 Lincoln Memorial Cent Proof
Johnny Bowen, a long-time coin collector, purchased a 1980 United States Proof Set from the U.S. Mint over 40 years ago. The set included a 1980-S Lincoln Memorial Cent Proof, one of over 3.5 million proof coins produced that year. However, Johnny noticed something strange about his coin: it had a misaligned die, meaning the designs were not perfectly lined up.
To figure out if this coin was valuable, Johnny reached out to Charles Morgan, a coin expert from CoinWeek. After looking at photos of the coin, Morgan confirmed it was a “Mint Error.” He guided Johnny on how to get the coin graded, which could help determine if the coin was worth more than a typical Lincoln Cent.
What Is a Rotated Die Error?
Understanding Coin Die Alignment
Coins are made using two metal dies: one for the heads (obverse) side and one for the tails (reverse) side. Under normal conditions, the obverse die is mounted upright, and the reverse die is mounted upside down. This way, when you flip the coin vertically, both sides are aligned correctly.
How a Rotated Die Error Happens
A rotated die error occurs when one of the dies is not aligned properly. For example, the reverse die might be rotated by a certain number of degrees. In Johnny’s case, the reverse die was rotated 140 degrees clockwise. This kind of error is rare because the U.S. Mint has strict quality control.
Here’s a table that explains the difference between regular die alignment and rotated die errors:
| Type of Coin | Die Alignment | Rotation (Degrees) | Resulting Error |
|---|---|---|---|
| Normal Coin | Obverse die is upright, reverse die upside down | 0 degrees (perfect alignment) | Both sides align correctly when flipped |
| Rotated Die Error (Johnny’s Coin) | Reverse die rotated 140 degrees clockwise | 140 degrees clockwise | Reverse side is misaligned, causing a rotation error |
Why Proof Error Coins Are So Rare
Proof coins are high-quality coins made especially for collectors. They are struck one by one with extra care to create a shiny, mirror-like finish. These coins go through a careful inspection process, and any coins with defects are usually destroyed. Since mint errors like Johnny’s are rare, they are highly sought after by collectors, especially those who focus on coins with mistakes.
Getting the Coin Graded and Evaluated
After confirming the error, Johnny sent his coin to CACG, a trusted coin grading service. The coin was graded as PR67RD CAM, which means it’s in excellent condition. However, it didn’t receive the “Deep Cameo” designation, which is given to coins with an especially strong contrast between the design and background.
Here’s a table showing the grading details of Johnny’s coin:
| Grading Information | Details |
|---|---|
| Grading Service | CACG (Certified Acceptance Corporation) |
| Grade | PR67RD CAM |
| Error Type | 140-degree rotated die error |
| Deep Cameo Designation | Not awarded due to slight softness on lettering |
With this official grading, Johnny now had proof of the coin’s uniqueness, and he was ready to explore its value.
Checking Your Coins for Similar Errors
Johnny’s discovery shows that rotated die errors are possible in 1980 U.S. Proof Sets, but how can you tell if your own set contains a similar error? To check for a rotated die error, simply flip a coin vertically. If the designs on both sides don’t align properly, then you may have found a rare coin with a misaligned die.
Conclusion
Johnny Bowen’s discovery of a rare Lincoln Memorial Cent error in his 1980 Proof Set is an example of why coin collecting can be so rewarding. Coins with mint errors are highly valued, and discovering one in your collection can make it even more exciting. If you’re a coin collector, take a closer look at your older proof sets – you might just find a unique error coin that could add value to your collection!
FAQ’s
What is a rotated die error?
A rotated die error occurs when the reverse side of a coin is struck with a die that is misaligned. This causes the design on the reverse to be rotated at an angle, unlike regular coins where both sides align correctly.
How can I tell if my coin has a rotated die error?
To check for a rotated die error, flip the coin vertically. If the designs on both sides don’t align properly, your coin may have a misaligned die.
Are proof coins with errors valuable?
Yes, proof coins with errors, like the rotated die error in the 1980 Lincoln Cent, can be very valuable to collectors, as they are rare and unique. Grading services help confirm their authenticity and value.