What Are Error Coins Worth?

Published October 17, 2026 · Last reviewed October 17, 2026 · 9 min read

What Is an Error Coin?

An error coin is a coin that came out of the Mint looking different from its usual design because something went wrong during the minting process. The blank was possibly cut badly, the coin was struck off-center, or two dies were paired in a way they shouldn't have been. Whatever the cause, the result is a coin that's quite unusual, and sometimes a lot more valuable.

We get excited whenever someone slides a strange looking coin across the counter, because there's always a chance it's something special. That said, the vast majority of coins people think are errors turn out to be damaged after they left the Mint, which will be covered later. Real mint errors do exist in jars and pocket change, and you need to know the basic categories in order to be able to tell the difference.

What Is the Difference Between an Error and a Variety?

Collectors use these two words differently, and it's worth getting them straight. An error is a one-off mistake in the minting process, such as an off-center strike or a clipped blank. Each one is a little different, and the mistake isn't repeated across large numbers of coins.

A variety, on the other hand, comes from a specific die and shows up on every coin that die struck. Doubled dies and repunched mint marks are the classic examples. Because the flaw lives on the die itself, thousands of identical coins can carry it, which is why you can look up a variety in a reference guide and match your coin against a known example. For a beginner, the takeaway is simple: varieties are usually easier to identify and verify, while true errors tend to be more individual and need an experienced eye.

What Is a Doubled Die?

A doubled die happens when a coin die is impressed more than once during its creation, and the second impression doesn't line up perfectly with the first. Every coin struck from that die then carries a doubled look on certain parts of the design, like the lettering or the date, as if the image was printed twice with a small shift.

The 1955 Lincoln cent is the most famous example, and it demonstrates extremely obvious doubling on the date and the lettering. That's the key point we always stress: a real doubled die shows rounded, separated doubling with a distinct second image, not a flat, shelf-like smear. Flat, shiny doubling is usually just machine doubling, a common and nearly worthless effect caused by a die shifting slightly during the strike. If you suspect a doubled die, a magnifying glass is your best first tool.

What Is an Off-Center Strike?

An off-center strike happens when a blank isn't properly seated between the dies when it's struck, so the design lands partly off the edge of the coin. You end up with part of the design missing and a blank, crescent-shaped area along one side.

How much value an off-center coin carries depends largely on how far off-center it is and how much of the design remains. A coin that's only slightly off-center has a small premium, while one that's dramatically shifted, yet still shows the full date, is the sort that collectors really chase. A coin that's so far off-center that the date is missing is generally less desirable, since the date helps identify and date the piece. The shape of the unstruck area also matters. A clean and curved blank edge looks very different from an irregular one, and that's one of the first things we look at.

What Is a Clipped Planchet?

A planchet is the blank metal disc that gets made into a coin. A clipped planchet is one that was cut incorrectly, leaving a piece missing from its edge. This usually happens when the machine that cuts blanks overlaps part of a metal strip it has already punched and produces a disc with a curved notch.

Curved clips are the most common kind, and they typically look like a neat, round bite taken out of the coin's edge. You'll also run into straight clips, where the blank was cut at the end of a metal strip, and ragged clips, which have a rougher, irregular edge. Clipped planchets are among the more affordable and approachable error coins, which makes them a popular first pick for newer collectors. The key identifying feature is that the clip should be present before the coin was struck, meaning the design near the clip still looks normal and the rim shows the pre-strike shape.

What Is a Repunched Mint Mark?

Before the 1990s, mint marks were punched into each die by hand, and sometimes the punch hit the die more than once, a bit off from the first impression. The result is a repunched mint mark, where you can see a faint second mark peeking out from behind or beside the main letter.

This falls under the variety category, since every coin struck from that die carries the same repunching. Some are minor and only draw attention from specialists, while others are quite notable. A famous related example is the 1938-D/S Buffalo nickel, where a "D" mint mark was punched over an earlier "S," a similar kind of mint mark mistake. If you want to check a coin for a repunched mint mark, you'll want a good loupe and a reference guide, since these details are small and easy to confuse with ordinary wear.

What Is a Broadstrike?

A broadstrike happens when a coin is struck without the retaining collar in place. That collar is a ring that normally holds the blank in place and shapes the coin's edge, and without it, the metal spreads outward under pressure, producing a coin that's noticeably wider than normal.

The design itself usually looks fairly centered and complete, but the coin has a flattened, spread-out appearance, and because the collar is what creates reeding on coins like dimes and quarters, a broadstruck coin often has a smooth, edgeless look instead. Broadstrikes are a good reminder that errors aren't always dramatic at a glance, since a broadstruck coin can look nearly normal until you compare its size to a regular one. A side-by-side comparison with a normal coin of the same type is the easiest way to spot one.

Which Error Coins Are Worth the Most?

A small group of error coins have become legends. The 1943 copper (bronze) Lincoln cent, struck by accident on leftover copper blanks during the year the Mint was making steel cents, is one of the most famous. A 1943-D example reportedly sold privately for $1.7 million! The reverse mistake, a 1944 steel cent, is also extremely rare and valuable.

Mule coins deserve a mention too. A mule happens when a coin is struck with an obverse die and a reverse die that were never meant to be paired, like the famous 2000-P Sacagawea dollar struck with the reverse of a Washington state quarter. Only a small number of those are known, and they've sold for crazy amounts. Because mules are so valuable and so easy to fake or alter, suspected examples should be authenticated by PCGS or NGC before anyone buys or sells them.

How Much Are Error Coins Worth?

The honest answer is that it varies enormously. Minor, common errors, like a lightly clipped planchet or a small off-center strike on a modern coin, often sell for a few dollars to somewhere in the range of tens of dollars. A dramatic off-center strike on a coin with a full date, or a coin struck on the wrong blank, can climb into the hundreds or thousands of dollars, and exceptional pieces go far higher.

At the very top of the market, the famous rarities can touch the million dollar mark! What drives value is a combination of how dramatic the error is, how rare it is, what kind of coin it appears on, and its condition. A dramatic error on an older or more popular coin generally commands more than the same error on a common modern coin. Because the range is so wide, we'd never tell you to guess.

How Can You Tell a Real Error From Post-Mint Damage?

This is the question we get most often, and it's the most important one. Post-mint damage (PMD), meaning anything that happened to a coin after it left the Mint, is the number one reason a coin looks like an error but isn't. Scratches, gouges, bent edges, and flattened spots are all common, and all essentially worthless from a collector's standpoint.

A few clues help. A real error usually affects the metal flow and the design in a way that looks natural and consistent. Damage tends to look like something happened to an already finished coin: gouges with raised edges, scratch marks cutting across the design, or flattened areas with no matching detail. A true clipped planchet, for example, will show a normal rim up to the clip, whereas a coin that was cut afterward won't. Magnification helps a lot, but if you're not sure, bring it in and let us take a look. We'd much rather give you a straight answer than have you chase a false lead.

How Do You Sell Error Coins?

Selling error coins is a little different from selling ordinary ones, because the value depends so heavily on exactly what kind of error you have and how well it's documented. Before selling, set aside any coin you suspect is genuine, handle it gently by the edges, and avoid cleaning it, since cleaning can wipe out value in a heartbeat.

We always recommend getting more than one opinion on a coin you think is special. If you're in or around Hamden, Connecticut, stop by Haven Coin & Jewelry for a free, no-obligation evaluation. Walk-ins are welcome during business hours (Tuesday through Friday 10am–5pm and Saturday 10am–2pm), or give us a call to schedule a time if you're bringing in a larger collection. We're a licensed Connecticut precious metals dealer and we'll go through your coins right in front of you, price them individually against live market prices, and pay you by check on the spot, as Connecticut law requires. You can reach us at (203) 717-4921, or find us at 2285 Whitney Ave, Hamden, CT.

FAQ: Error Coins

Are error coins worth money?

Mostly. Minor errors on common coins are often worth a few dollars, while dramatic or famous errors can be worth thousands or far more.

What is the most valuable error coin?

The 1943 copper cents, especially the 1943-D, are among the most valuable, with one reportedly selling privately for $1.7 million.

How can you tell if a coin is an error?

Look for a flaw that happened during striking, like doubling, a missing piece of the blank, or an off-center design. Rule out scratches or damage first, ideally with magnification.

Where can I sell error coins?

Local coin dealers, numismatic specialists, and auction houses all buy them. Getting more than one opinion helps ensure a fair price.