Penny Error Checker: Scan Your Pennies for Mint Errors
The penny error checker is optimized for Lincoln cents — the most collected and searched U.S. coin series. Upload photos of your pennies and the AI will check for doubled dies, off-center strikes, die cracks, clipped planchets, wrong planchet errors, and other anomalies specific to the penny series.
Why Check Pennies for Errors?
More error coins are found on pennies than any other denomination. The sheer volume of pennies produced — tens of billions over the decades — means more opportunities for errors. Lincoln cents have been struck at multiple mints with hundreds of different die pairs, producing a rich variety of die varieties and striking errors.
What the Penny Checker Looks For
- Doubled die varieties — doubling on "LIBERTY," "IN GOD WE TRUST," the date, and Lincoln's portrait
- Off-center strikes — shifted designs with blank crescents
- Die cracks and cuds — raised lines and blobs from die deterioration
- Clipped planchets — missing portions of the coin edge
- Wrong metal errors — pennies that appear to be on the wrong planchet
- Broadstrikes — oversized pennies struck without the collar
- Strike-throughs — impressions from foreign material
How to Photograph Pennies for Best Results
Penny errors can be subtle, especially doubled dies. For the best scan results:
- Use a magnifying lens attachment on your phone camera if available
- Photograph under strong, angled lighting to reveal surface details
- Focus on the date, "LIBERTY," and "IN GOD WE TRUST" areas
- Capture both obverse and reverse
- A dark background helps the AI distinguish the coin's edge
Popular Penny Series to Check
- Wheat Pennies (1909-1958) — older dies and production methods created many varieties
- Memorial Pennies (1959-2008) — high production volumes mean more error opportunities
- Shield Pennies (2010-present) — modern production still produces occasional errors
Frequently Asked Questions
What are the most common penny errors?
The most commonly found penny errors include minor die cracks, grease-filled dies, and small off-center strikes. More significant errors like doubled dies, major cuds, and wrong planchet strikes are less common but more valuable.
How do I scan a penny with ErrorHunt?
Take a clear, well-lit photo of your penny (both sides if possible), upload it to ErrorHunt's scanner, and receive AI analysis within seconds. The system checks for all major error types specific to Lincoln cents.
What years of pennies have the most errors?
Errors can occur in any year. Some years are better known for specific varieties (certain doubled dies, for example), but errors are not limited to any particular time period. Checking pennies from any era is worthwhile.
Upload your penny photos and check for errors right now.
Check Your Pennies