Have you found a coin with doubled letters, numbers, or images? Many people refer to these as “double stamped” coins, and they can be one of the most exciting and valuable types of mint errors to find.
However, the value of these coins can range from a few dollars to tens of thousands, and it all depends on what type of error you have. This guide will help you understand the different types of doubling and what makes a coin truly rare and valuable.
Is it a “Doubled Die” or “Double Struck”?
First, it’s helpful to know the correct terms collectors use. What people call a “double stamped” coin is usually one of two distinct types of mint errors.
1. Doubled Die Coins
This is the most common and sought-after type of doubling. It happens when the die (the master stamp used to strike the coin) is accidentally made with a doubled image. Every coin struck with that faulty die will have the same doubled features.
- What to Look For: Doubled letters in words like “LIBERTY” or “IN GOD WE TRUST,” or a doubled date and mint mark. The doubling will look like a shelf or a second, distinct image underneath the first.
- Famous Example: The 1955 Doubled Die Lincoln Cent is the most famous of all. The doubling on the date and letters is so dramatic it can be seen with the naked eye.
2. Double Struck Coins
This error is much rarer. It happens when the coin itself is physically struck twice by the dies. This usually results in a second, off-center image stamped over the first one, creating a dramatic and chaotic-looking coin.
What Determines the Value of Your Coin?
The value of your doubled coin depends entirely on two factors:
- The specific coin and error: Is it a well-known, sought-after variety like the 1955 Doubled Die Cent or a 1972 Doubled Die Cent? Or is it a more minor and common variety?
- The visibility of the doubling: The more dramatic and obvious the doubling, the more valuable the coin. Minor doubling that requires a strong magnifying glass to see will be worth far less than bold doubling you can see easily.
The Final Step: Professional Authentication is Crucial
It takes an expert eye to distinguish between a valuable doubled die, a minor error, and a coin that is simply worn or damaged in a way that mimics doubling (a common issue called “machine doubling”).
As Life Members of the American Numismatic Association (ANA) with an A+ BBB rating, our team of experts can determine exactly what you have. We can authenticate your coin, assess the strength of the error, and provide an accurate market value.
Get a Free, No-Obligation Evaluation Today
You’ve already taken the first step by noticing something unique about your coin. Let us help you with the final step. We provide a free, confidential appraisal of all potential mint errors.
Contact us today by email, text, or the form below to discover the true value of your find.
