The Collectors Guide to One of the Most Dramatic U.S. Mint Errors
Off-center strikes are among the most visually arresting and immediately recognizable mint errors in U.S. numismatics. They combine dramatic eye appeal with clear mechanical explanations, making them highly collectible and widely studied. In this article, we will look at what an off-center strike is, why it happens, how it is evaluated, and why certain examples, like the 1887 Morgan Dollar struck 30% off center in the current Heritage Auctions Featured Numismatic (FUN) Auction, stand out as true condition and rarity prizes.
What Is an Off-Center Strike?
An off-center strike occurs when a coin blank (planchet) is misaligned between the obverse and reverse dies at the moment of striking. Because the planchet is not fully centered within the striking chamber, only part of the design is impressed. The result is a coin with missing design elements on one side and a blank crescent of exposed planchet on the other.
Unlike weak strikes or die wear, an off-center strike is a one-time mechanical error, not a gradual degradation of tooling. Each example represents a specific failure during a single striking event.
Why Off-Center Strikes Happen
To understand off-center strikes, it helps to briefly review how a coin is struck.
The Normal Striking Process
In a properly functioning press:
- A planchet drops into a collar, which holds it in place.
- The obverse and reverse dies strike the planchet simultaneously.
The collar ensures proper diameter, centering, and edge formation.
Where the Process Fails
An off-center strike happens when:
- The planchet fails to seat correctly in the collar, or
- The collar does not fully engage, or
- The planchet shifts during the strike due to timing or feeding issues.
Because the dies strike where the planchet happens to be, not where it should be, the design is impressed off its intended centerline.
Importantly, the dies themselves are properly aligned. The error lies entirely in the planchet’s position.
How Off-Center Strikes Are Measured
Off-center strikes are described by the percentage of design missing:
- 5–10% off center: Minor but noticeable
- 15–25% off center: Strong visual impact
- 30%+ off center: Dramatic and scarce, especially on large coins
The percentage refers to how much of the intended design lies outside the planchet. A higher percentage generally means greater rarity, especially if key design elements remain visible.
What Makes an Off-Center Strike Valuable?
Several factors determine the desirability and value of an off-center strike:
1. Percentage Off Center
Larger percentages are scarcer, particularly on coins struck at high speed or with large diameters, such as silver dollars.
2. Visibility of the Date
Collectors strongly prefer off-center strikes that retain a readable date. Once the date disappears, attribution becomes difficult and demand often drops.
3. Denomination and Type
Large coins, including Morgan dollars, are much harder to strike dramatically off center than small denominations. Their size and weight make severe misalignment less likely.
4. Overall Condition
Even error coins are graded for wear, surface preservation, and originality. Problem-free examples command premiums.
5. Eye Appeal and Balance
Some off-center strikes display a visually pleasing balance between struck design and blank planchet. These pieces often bring stronger prices.
Case Study: The 1887 Morgan Dollar, Struck 30% Off Center
The 1887 Morgan Dollar struck 30% off center, currently offered in the 2026 Heritage’s FUN Auction, represents the upper tier of classic U.S. error coinage.
Key Technical Details
- Date: 1887
- Mint: Philadelphia (confirmed by intact mintmark area)
- Error Type: Struck approximately 30% off center, toward 2:30
- Certification: NGC Details, AU
- Surface Note: Cleaned
- Pedigree: The Misfits Collection of U.S. Error Coins Showcase, Part 2 (Heritage, December 2022)
Why This Coin Is Exceptional
Despite the wide off-center strike:
- Nearly the full date remains visible, missing only the tail of the final “7.”
- The mintmark area is fully present, definitively confirming a Philadelphia origin.
- Major reverse legends, OF AMERICA, E PLURIBUS UNUM (BUS UNUM), and portions of DOLLAR, are absent, emphasizing the dramatic nature of the error.
These characteristics place the coin in a rare sweet spot: severe misalignment combined with clear attribution.
Surface Characteristics and Strike-Throughs
The coin displays mostly stone-white surfaces, and while the piece was likely dipped in the past, its visual appeal remains strong.
Notably, Liberty’s chin and neck show small oval-shaped strike-throughs, created when foreign material briefly obstructed the dies during striking. These are as-made mint errors, not post-mint damage, and they add another layer of technical interest.
How Rare Are Off-Center Morgan Dollars?
Off-center strikes are known across U.S. coinage, but Morgan dollars are especially challenging to find with large percentages off center. Their substantial diameter and the robust collar system used for silver dollars make severe misalignment unlikely.
Examples exceeding 25% off center with a visible date are scarce. At 30% off center, this 1887 dollar qualifies as exceedingly rare, even within specialized error collections.
Off-Center Strikes vs. Other Mint Errors
It is important to distinguish off-center strikes from related errors:
- Broadstrikes: Coin expands beyond its normal diameter but remains centered.
- Partial collar strikes: Feature a “railroad rim” but full design coverage.
- Clipped planchets: Missing metal before striking, not after misalignment.
An off-center strike always involves post-planchet, pre-strike misplacement.
Why Collectors Pursue Off-Center Strikes
Collectors value off-center strikes because they:
- Visually demonstrate the minting process
- Are instantly recognizable
- Vary dramatically from coin to coin
- Combine technical rarity with aesthetic impact
For advanced collectors, large-denomination off-center strikes, especially Morgan dollars, represent centerpieces of any U.S. error coin collection.
Final Thoughts
Off-center strikes are not random curiosities. Instead, they are precise mechanical failures frozen in silver, copper, or nickel. The 1887 Morgan Dollar struck 30% off center exemplifies everything collectors seek: dramatic misalignment, a visible date, confirmed mint attribution, and historical pedigree.
In the realm of classic U.S. error coins, examples of this caliber are not merely interesting, they are definitive.
I have always been fascinated with mint error coins. Great explanation of off-centered strikes. Amazing photo example of Morgan dollar off-center.
One of the craziest errors I’ve ever seen on as Morgan.
Very informative article on the off-center strike.
Interesting topic. I have gone through lots of coins and have yet to find one. Best errors I’ve found are a Sacegewea dollar with a 90 degree die rotation, and a Lincoln cent that lacks the copper plating.
No quality inspection? Why weren’t they reused/restruck?
Interesting article. I can see why people collect them.
I have several off centers but nothing silver does anyone know who sells them.
I found an off center Lincoln cent in middle school. I gave it to a friend.
i love these ‘errors’ and still searching for one!
I love reading about error coins, especially love Morgans. I keep searching new rolls of coins for die chips and other errors.
What are/were the odds of an error like this happening? 1 of every million coins produced? Less often? More Often?
cool mint errors.
Someone I know saw an off-center penny for sale by a dealer just a few days ago. Thought about, went back, and it was gone.
It breaks my heart that this coin was cleaned but the eye appeal is fantastic!
Yeah. That’s a pretty dramatic coin. I’m surprised it has seen a bit of circulation…
Appreciate the article. I enjoy the errors section of CoinWeek and I’m always on the lookout for one.
very interesting article and pictures of error coins that I have never seen.
I have looked through hundreds of coins and have yet to find any off center ones. Where is a good place to get coins that may include one?
Great information
Never have come across an off center strike coin
Awesome article. I absolutely love errors and varieties.
Interesting, informative article. I can understand how this error can escape since it retains the shape rather than being misshaped. Whoever discovered this coin was pretty lucky.
And people back in the day would want to get rid of these.
Very informative article!
Very informative article. Thanks
Thanks. Very Informative Article
That is one beautiful error coin. $$$ way beyond my reach. I am happy though with my off center Lincoln cents.
Makes ya wonder how many Morgan dollars were error coins–I’m guessing not very many
A good article, lots of good information.
I wonder how these even pass inspection before leaving the mint
I like off-center strikes. I have a few in my collection, but none are as dramatic as this. Mostly 1-2%, though I have a Jefferson nickel that is about 5% off on the obverse.
I have never seen an off center strike before this. Wasn’t even aware that it ever happened little alone that that didn’t just remelt them to make them over again!
That is an amazing error.
Mint strike errors are interesting. This one reminds me of an eclipse.
An excellent article for the error/variety collector to absorb.
Thanks for he informative article.
Can’t understand why they didn’t just melt these down and strike again.
Very interesting article.
I’ve never seen (or at least never noticed) an off-center US coin, though I’ve seen it foreign coins.
Wow! These are really cool! I’d love to own one. Helpful, informative article!
I have an off-center penny without a date from my Grandfather and it is one I will hold onto even though it may not be worth much. A very informative article.
Interesting read; have yet to find a coin like this in the wild.
I have several off-center strike coins in my collection, mostly cents. I have no silver coins… yet!
What Is an Off-Center Strike? – A Super Cool Coin.
very cool
i was never really aware of this as an issue, interesting read however
Thanks for the info. Hopefully I’ll get an off center strike in my collection one day.
Very interesting article. We had an off center cent at one time.
Amazing this coin survived.
that was very interesting, my husband collected coins but he didn’t have anything like that
Very interesting article, I have an off center penny, with date visible, some day i will do something with it
Very good article on the off center stroke coins.
You never see these coins.
Always wanted one for the collection. Good read.
nice
i love oddities like this
What a fantastic Off-Center Error Coin!!!
Off-Center Morgan Dollars like this coin are truly rare!!!
I collection errors and oddities. Great article.
Errors and varieties are my favorite coins to collect!
Always looking for this off-centres coins in everyday use coins. Jackpot if I do find one nowadays