Thinking of buying or selling a 1990-D Washington quarter with an error? We’ve analyzed hundreds of listings and certified coins to bring you the most accurate, up-to-date guide on spotting real value – and avoiding common traps.
🔍 Key Details: Is Your 1990-D Error Quarter Authentic?
Most Common Claimed Errors:
- Double Die Mint Mark (D/D) – Extremely rare
- Die Clash on Eagle’s Wing – More frequently seen
Red Flags to Watch For:
- ❌ No certification from PCGS or NGC
- ❌ Descriptions like “lightly circulated” with no specifics
- ❌ Stock photos used instead of real coin images
đź“Ś Real-World Value Breakdown
| Error Type | Certified Coin Value | Raw (Uncertified) Value |
|---|---|---|
| Double Die Mint Mark (D/D) | $300 – $1,500 | $50 – $200 |
| Wing Die Clash | $50 – $150 | $10 – $30 |
| Verified Combo Errors | $500+ | $100 – $300 |
💡 Expert Tip: Most so-called “double die” coins online are actually machine doubling, which lacks the distinct separation lines visible under 10x magnification.
âś… How to Spot a Real Error Coin
🔬 Mint Mark Verification:
- Use a 10x loupe or magnifier
- True D/D shows clear separation lines, not flat or shelf-like doubling
- Compare with official PCGS CoinFacts images
🦅 Die Clash Identification:
- Look for a mirrored eagle wing impression on the obverse side
⚖️ Weight & Measurement:
- Should weigh 5.67 grams
- Diameter: 24.26 mm
🚨 Buyer Beware: Seller Red Flags
Avoid listings that show:
- ❌ No PCGS/NGC certification
- ❌ Vague or exaggerated claims like “ULTRA RARE”
- ❌ Stock photos with no real images
- ❌ No return policy
- ❌ Use of buzzwords like “double die” without visual proof
đź’Ž Smarter Buying Tips
Instead of gambling on eBay listings:
- âś… Browse certified error coins on Heritage Auctions
- âś… Buy from trusted dealers like Liberty Coin
- âś… Check verified listings and discussions on CoinCommunity forums
📥 Get Your Free “Quarter Error Checklist”
Want help spotting genuine vs. fake error coins?
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