Free Quarter Identifier
Identify US quarters — Washington, State, National Park, and all date/mint mark varieties. Powered by AI — completely free, no sign-up required.
About This Tool
The US quarter has undergone more design changes than almost any other circulating coin. Our Quarter Identifier covers every Washington quarter from 1932 to the present, including all 50 State Quarters (1999–2008), the District of Columbia and US Territories quarters (2009), the America the Beautiful National Parks quarters (2010–2021), the American Women quarters (2022–2025), and the Semiquincentennial reverse (2026). For each quarter, the AI identifies the date, mint mark, state or design, and any valuable varieties.
📸 Tips for Best Results
- ✓State Quarter mint marks: 'P' (Philadelphia) and 'D' (Denver) on the obverse, right of Washington's ribbon
- ✓The 1999-P Delaware quarter is the most commonly collected first-year issue
- ✓Pre-1965 Washington quarters are 90% silver — look for the older design and silver colour
- ✓Valuable varieties: 1955 doubled die, 1970-S proof on 1941 Canadian quarter planchet
- ✓Proof quarters (S mint mark) are struck specially for collectors — not for circulation
🏛️ Fascinating Facts
- •The 50 State Quarters programme is estimated to have brought 140 million new collectors into the hobby
- •Pre-1965 Washington quarters are 90% silver — worth several dollars each for their silver content alone
- •The rarest State Quarter is the 2004-D Wisconsin quarter with an extra leaf on the corn — worth $100–$500
- •The first Washington quarter was issued in 1932 to commemorate the 200th anniversary of Washington's birth
- •The America the Beautiful quarters ran from 2010 to 2021 — covering national parks and sites in all 50 states
Upload Photo
Photograph both sides of the coin on a dark background
AI Analyses
Our AI examines design, lettering, size, and metal
Full Details
Country, year, denomination, mint mark, and estimated value
Frequently Asked Questions
How do I know if my quarter is silver?
Pre-1965 quarters are 90% silver. They have a uniform silver colour (no copper edge visible), a distinctive ring when dropped, and weigh 6.25g (vs 5.67g for clad quarters).
What are the most valuable Washington quarters?
Key dates include 1932-D, 1932-S, 1936-D, and the 1950-D. Most circulated key date quarters are worth $50–$500; uncirculated examples are worth significantly more.
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