Breaking News: A mysterious 2007 Wyoming state quarter, accidentally struck on a 1 oz platinum blank, could be worth over $500,000 today. And yes — it might still be hiding in someone’s loose change.
At CoinVerse, we’ll show you how to identify this ultra-rare minting error before it slips through your fingers. 
The $500,000 Minting Disaster
- Coin: 2007 Wyoming Platinum Quarter
- Error: Struck on a platinum planchet instead of copper-nickel
- Weight: 31.1 g (normal quarters = 5.67 g)
- Survivors: Only 1–2 examples believed to exist
- Value: Auction estimates $500,000+
Why so valuable?
This is a once-in-a-century U.S. Mint blunder — quarter dies mistakenly paired with platinum blanks intended for bullion coins. The result: a metal rarity worth more than a Lamborghini.
How to Spot the 2007 Platinum Quarter
Look for these unmistakable signs:
Weight Test → Exactly 31.1 g (use a jewelry scale)
Color & Luster → Brighter than silver with a watery, mirror-like shine 
Edge Check → Solid platinum edge (no copper “sandwich” layers)
Pro Tip: Compare side-by-side with a normal quarter — the difference is stunning! 
Normal Quarter vs. Platinum Error
| Feature | Normal Quarter | Platinum Error Quarter |
|---|---|---|
| Weight | 5.67 g | 31.1 g |
| Metal Value | $0.25 | $1,000+ (platinum spot value) |
| Collector Value | Face value | $500,000+ |
Fake Warning Signs
Scammers love to hype this coin. Stay sharp:
eBay listings that look “too good to be true”
Coins weighing ~6.25 g (silver planchets, only worth $50–$100)
Sellers claiming “many exist” (false — maybe 1–2 total)
Only trust:
- PCGS / NGC certification
- XRF metal analysis to confirm pure platinum
What to Do If You Find One
Handle carefully — only by the edges (cotton gloves recommended) 
Weigh & photograph the coin clearly from multiple angles 
Submit immediately to PCGS or NGC for grading
Sell through trusted auction houses like Heritage Auctions or Stack’s Bowers
Never clean the coin — even one wipe can erase $100,000+ in collector value.
Where Could This Treasure Be Hiding?
- 2007–2008 coin rolls (especially Philadelphia Mint issues)
- Old tip jars or cash registers
- International change (platinum coins do circulate abroad)
Fun Fact: A six-figure 1943 copper penny was once found in a laundromat. This platinum quarter could be the next jackpot.
