Quarter Error Checker: Find Errors on Your Quarters
The quarter error checker is tuned for Washington quarters, including the 50 State Quarters, America the Beautiful series, and American Women quarters. With dozens of different reverse designs produced over the past two decades, quarters offer one of the richest hunting grounds for error coin collectors.
Why Quarters Are Great for Error Hunting
The constant design changes in the State Quarters and subsequent programs mean the mint regularly produced new dies. Each new die is an opportunity for a doubled die, misaligned die, or other variety. Additionally, quarters are large enough to show errors clearly but common enough to find in circulation.
What the Quarter Checker Detects
- Doubled die varieties on both obverse and reverse
- Off-center strikes
- Die cracks, die breaks, and cuds
- Rotated die errors
- Clipped planchets
- Broadstrikes and partial collars
- Wrong planchet errors
- Strike-throughs and grease fills
State Quarter Error Hunting Tips
- Check the state-specific reverse design for doubling — each design has different high-risk areas
- Look at "E PLURIBUS UNUM" and "UNITED STATES OF AMERICA" for doubled lettering
- Examine the edge for proper reeding — missing reeding may indicate a broadstrike
- Compare obverse and reverse alignment by flipping the coin
- Weigh the coin — significantly off-weight quarters may be on wrong planchets
How to Get Started
Simply upload a clear photo of your quarter to ErrorHunt's scanner. The AI analyzes both the obverse (Washington portrait) and reverse (state, park, or women design) for potential errors, then delivers results with confidence scores and educational context.
Frequently Asked Questions
What state quarter errors should I look for?
Check for doubled die lettering on the reverse, die cracks running through design elements, off-center strikes, and missing edge reeding. Each state design has different areas prone to varieties, so examine all design elements carefully.
How do I check a quarter for errors?
Upload a clear photo of both sides to ErrorHunt. Also examine the coin under magnification, checking the date, lettering, and design for doubling; the rim for cuds and clips; and the edge for proper reeding. Compare obverse-to-reverse alignment.
Are state quarter errors worth collecting?
Many state quarter errors are actively collected. The series has a large collector base, which means demand for genuine errors. Values depend on the type of error, severity, and condition.
Got quarters to check? Upload photos and let AI find the errors.
Check Your Quarters