Do error coins stay in circulation?
How errors slip through
Mints use inspection to remove obvious defects, but some errors are subtle enough to pass through. Those coins can enter banks and pocket change, where people find them by chance.
Errors caught early often stay out of circulation, while small ones may slip past. The chance of finding one in everyday change is low, so finds are uncommon.
- Minor errors are more likely to pass inspection.
- Major errors are often caught before release.
- Finding an error by chance is uncommon.
- Bank bags and rolls are a common place people look.
What to do if you find one
Keep the coin in a holder, avoid cleaning it, and compare it to a reliable reference. A knowledgeable dealer or appraiser can tell you whether the error is real and whether it deserves further review.
Be wary of anyone who wants to buy the coin cheaply before you know its value. Taking time to check protects you from a low offer.
If you suspect you have found an error, do not rush to a sale or post the coin publicly with a price. A careful look with a magnifier and a second opinion from an experienced collector usually gives a clearer picture than a quick online search.
Common mistakes
- Assuming every odd-looking coin is a major error.
- Scratching or cleaning a coin to remove dirt that might be part of the error.
- Selling to the first buyer without checking current values.
