If you’re someone who loves coin collecting or even just enjoys digging through spare change, here’s one little penny you won’t want to overlook. It’s called the RPM (Repunched Mint Mark) Wheat Penny, and believe it or not, one of these small coins once sold for a jaw-dropping $32,900.
It might look like your everyday old penny at first glance, but a tiny minting error gives it enormous value in the world of rare coins.
Let’s break down why this coin is so special and how you can spot one in your own collection.
Meaning
RPM stands for Repunched Mint Mark. This happens when the mint mark on a coin—like an “S” for San Francisco—is accidentally punched more than once in slightly different positions.
This mistake creates a shadow-like or doubled image of the letter on the coin. For the RPM S/S mint mark found on a Lincoln Wheat Penny, it means the “S” was struck twice, and if you take a close look with a magnifying glass or a coin microscope, you can often spot the extra impression just below the year.
Value
The most famous and valuable version of this error is found on the 1955-S Lincoln Wheat Penny with an S/S RPM. In top-notch condition and with a very strong, visible repunching, one of these rare pennies was sold at auction for a whopping $32,900.
Of course, the exact value depends on the coin’s condition and how clear the minting error appears.
Even if your coin isn’t in perfect condition, lower-grade examples with an obvious RPM can still fetch hundreds or even thousands of dollars. The price varies, but collectors are always eager to get their hands on one of these interesting errors.
Here’s a quick table to give you an idea of possible values:
| Year | Type | Auction Price |
|---|---|---|
| 1955-S | S/S RPM Wheat Penny | $32,900 |
| 1946-S | S/S RPM Wheat Penny | $200 – $800 |
| 1949-S | S/S RPM Wheat Penny | $300 – $1,200 |
Spotting
If you’re hoping to find one of these hidden treasures, start by looking for Lincoln Wheat Pennies dated 1955, 1946, or 1949, especially if they have an “S” mint mark just below the date. Examine that “S” closely.
You’re looking for a double punch or a shadow image behind the main letter. The error can be tiny, so using a magnifying glass or coin microscope makes it much easier to catch.
If something about the mint mark looks a little off or you notice a doubled outline, it might be worth taking the coin to a professional for verification.
Demand
What makes these coins so valuable is their rarity. RPM errors weren’t intentional, and only a small number made it out of the mint before anyone noticed. Collectors are drawn to these rare mistakes, especially when the coins are in excellent condition with a sharp, visible error.
The RPM S/S Lincoln Wheat Penny is a perfect example of how even the smallest flaw can turn a regular one-cent coin into a collector’s dream worth thousands.
Treasure
In the world of coin collecting, tiny details can lead to big payoffs. The RPM S/S Wheat Penny proves that it’s worth paying attention to the little things.
A regular penny might not seem like much, but if it carries that repunched mint mark, it could be worth far more than its face value.
So next time you come across an old Wheat Penny, take a moment to check the mint mark. You might just stumble onto a hidden fortune.
FAQs
What does RPM mean on a penny?
RPM stands for Repunched Mint Mark, a double punch error.
Which RPM penny sold for $32,900?
A 1955-S Wheat Penny with a strong S/S RPM sold for $32,900.
How do you check for an RPM penny?
Use a magnifying glass to look for a shadow around the mint mark.
Are all RPM pennies valuable?
Not all, but rare and clear errors can be worth hundreds or more.
Where is the mint mark on a Wheat Penny?
Just below the year on the front (obverse) side of the coin.
