At PennyVerse.info, we’ve analyzed hundreds of 1990-D quarter errors – here’s what you need to know before buying or selling this coin.
Authenticity Check: Key Details
- Claimed Errors:
- “Double Die Mint Mark” (extremely rare for 1990-D)
- “Die Clash on Wing” (more common)
- Red Flags in Listing:
- No certification (PCGS/NGC)
- Vague condition description (“lightly circulated”)
- Stock photo (no actual coin images)
Real-World Value Breakdown
| Error Type | Certified Value | Raw Coin Value |
|---|---|---|
| Legit D/D Mint Mark | $300 – $1,500 | $50 – $200 |
| Wing Die Clash | $50 – $150 | $10 – $30 |
| Combination Errors | $500+ (if verified) | $100 – $300 |
Key Insight: True double die mint marks show separation lines under 10x magnification – most eBay listings are machine doubling.
How to Verify a Real Error
- Mint Mark Examination:
- Use a 10x loupe to check for true doubling (not flat “shelf-like” doubling)
- Compare to known examples from PCGS CoinFacts
- Die Clash Identification:
- Look for mirror-image impressions of the eagle’s wing on the obverse
- Weight/Measurement Test:
- Should weigh 5.67g and measure 24.26mm
Seller Warning Signs
“Rare error” claims without certification
Stock photos instead of actual coin images
No returns accepted
Over-reliance on terms like “double die” without specifics
Better Alternatives for Buyers
- Certified Examples: Search Heritage Auctions for PCGS/NGC slabs
- Error Specialists: Buy from established dealers like Liberty Coin
- Coin Forums: Check CoinCommunity for vetted sales
Want Our Free “Quarter Error Checklist”?
Visit PennyVerse.info to download our expert guide to spotting real vs. fake errors!
“When buying error coins online, trust – but verify with magnification!”
- The PennyVerse Team
[Insert Email Signup for Error Coin Alerts]
