Most people see the 1776–1976 Bicentennial Quarter as just pocket change — but for coin collectors, there’s one variety that could be worth $1 million or more.
Yes, you read that right! 
A rare “No Mint Mark” Bicentennial Quarter is believed to exist in only a handful of examples, making it one of the most valuable U.S. modern coins. Let’s break down why this quarter is so special, how to identify it, and what it might be worth if you happen to find one.
Why This Quarter Could Be Worth $1 Million
The Bicentennial Quarter was minted in 1976 to celebrate America’s 200th birthday 
. Most of them are common, but the No Mint Mark error makes a few stand out:
Missing Mint Mark Error: Instead of showing a “D” (Denver) or “S” (San Francisco), some rare examples have no mint mark at all.
Ultra-Rare: Experts believe only 2–3 authentic coins exist.
Historical Significance: Being a commemorative issue makes it even more collectible.
Auction Comparables: In 2022, a similar high-rarity error coin sold for $1.2 million.
How to Authenticate a Genuine No Mint Mark Bicentennial Quarter
Think you may have the real deal? Here’s a step-by-step guide:
1. Mint Mark Examination 
- Look under the eagle on the reverse.
- Genuine error coins have no trace of “D” or “S” — even under 10x magnification.
2. Weight & Composition 
- Correct weight: 5.67 grams
- Should be copper-nickel clad with slight magnetic response.
3. Die Characteristics 
- Compare with known authentic examples (from PCGS or NGC databases).
- Must show proper 1976 Bicentennial design details.
Value Guide: How Much Could Yours Be Worth?
The condition (grade) of the coin dramatically impacts value:
| Grade | Estimated Value |
|---|---|
| AU-50 (About Uncirculated) | $100,000 – $250,000 |
| MS-63 (Mint State) | $250,000 – $500,000 |
| MS-65+ (Choice Uncirculated) | $500,000 – $1,000,000+  |
Where to Sell a $1 Million Bicentennial Quarter
If you think you have one of these treasures:
- Get Certified First: Send your coin to PCGS or NGC for professional authentication.
- Obtain an Insurance Appraisal: Protect your investment.
- Choose a Major Auction House:
- Heritage Auctions (record-setting prices)
- Stack’s Bowers (rare U.S. coins experts)
- Legend Rare Coin Auctions (error coin specialists)
- Consign to Premium Sales: Top coins often appear at Platinum Night sales.
Beware of Counterfeits!
Unfortunately, fakes are common. Watch for these red flags:
Altered Coins: Some have mint marks removed by filing.- Wrong Weight: Anything off by more than ±0.2g is suspicious.
Odd Coloration: Authentic coins should show proper clad-metal tones.
Why This Coin Matters
This isn’t just about money — the 1776–1976 No Mint Mark Bicentennial Quarter is a piece of history. It combines:
A once-in-a-lifetime minting error
A commemorative design celebrating America’s 200th birthday
Record-breaking potential in the auction world
Finding one could be like winning the lottery — only better, because you’d own a unique piece of American history. 
