Many everyday coins can hide exceptional value. A few dimes and quarters struck in certain years, mints, or with minting errors have sold for six or seven figures. This guide explains what to look for and how to check your change safely.
How Rare Dimes and Quarters Worth Millions Are Identified
Collectors and dealers look for three main factors: date, mint mark, and condition. Coins that combine a scarce date or mint mark with high-grade condition can reach extreme prices.
Errors and varieties also matter. Double dies, repunched mint marks, and incorrect planchet strikes create rarities that attract strong bidding at auction.
Key mint marks and dates to watch
Focus on early dates and low-mintage years. For dimes, watch classic issues like Mercury dimes (1916) and rare mint marks. For quarters, key years include early Washington and Standing Liberty issues.
Also note mint marks such as D (Denver), S (San Francisco), and early Philadelphia pieces. A rare mint mark on a scarce year often creates the highest values.
Most Valuable Dimes to Check For
Certain dime types are known for producing high-value examples. The type, date, and condition combine to create market value.
- Mercury dimes (1916–1945) — especially the 1916-D, which is scarce in high grades.
- Barber dimes (1892–1916) — low-mintage dates and proofs can be valuable.
- Seated Liberty dimes (1837–1891) — very old dates and mint errors are prized.
Most Valuable Quarters to Check For
Quarters also include high-value types. Condition and minting location are critical to final price.
- Standing Liberty quarters (1916–1930) — early issues and low mintage years are sought after.
- Washington quarters (1932) — some 1932-D and 1932-S pieces are rare in high grades.
- Flowing Hair and Draped Bust early quarters — collectors pay premiums for well-preserved examples.
Errors and varieties that raise value
Error coins can be more valuable than rare dates. Look for doubled dies, off-center strikes, clipped planchets, and repunched mint marks.
Take clear photos and note any unusual features before consulting a specialist or submitting for grading.
How to Check Your Change: Practical Steps
Checking change requires minimal tools and care. Start with soft gloves to avoid adding fingerprints and a magnifier to inspect details.
- Use a 10x loupe or magnifying glass to read small dates and mint marks.
- Compare suspect coins to reference images from trusted sources or price guides.
- Keep coins in flips or coin folders; do not clean or polish them.
When to seek professional help
If a coin appears scarce or has an obvious error, photograph it and contact a reputable dealer or grading service. High-value coins should be graded by a recognized service like PCGS or NGC.
Grading can confirm authenticity and condition, and professional slabs typically increase buyer confidence at auction.
Where to Sell Rare Dimes and Quarters
Choose the selling channel based on how much guidance you want and how much time you can wait for a sale. Auctions, dealers, and online marketplaces are common options.
- Auction houses and specialist coin auctions are best for very rare, high-value coins.
- Reputable coin dealers can offer quick, secure transactions but may take a commission.
- Online marketplaces are good for moderately rare coins but require careful listings and buyer screening.
Protecting your sale
Use insured shipping and require signature on delivery. Keep records of communications, invoices, and grading certificates that accompany the coin.
Get multiple opinions on price for coins that could be worth five figures or more.
Some coins found in pocket change were later authenticated and sold for six or seven figures. Even coins from common series can be very valuable if they have rare dates, mint marks, or minting errors.
Real-World Example
A collector discovered a high-grade early Washington quarter while sorting a box of mixed coins. After photographing the piece and consulting a specialist, the coin was authenticated and sent for grading.
It later sold through a specialist auction, commanding a price well above typical circulation values because the combination of date, mint mark, and condition was very rare.
Final Checklist Before You Sell or Grade
- Do not clean the coin; cleaning destroys collector value.
- Document the coin with clear photos from both sides and close-ups of dates/mint marks.
- Get a second opinion from a reputable dealer before committing to grading costs.
- Use insured shipping and trusted auction or dealer platforms when selling high-value coins.
Finding a rare dime or quarter in your change is uncommon, but the payoff can be substantial. With careful handling, basic tools, and expert help when needed, you can determine whether a coin belongs in a collection or at auction.