10 Shocking Coin Mistakes Worth
You could be sitting on a small fortune without even knowing it.
Whether you inherited a coin collection, keep loose change in a jar, or search bank coin rolls, rare mint errors can turn ordinary coins into thousands of dollars 💰
Below are 10 real coin mistakes that shocked collectors and sold for huge money at auction.
Let’s dive in 👇
1️⃣ Triple-Struck 1889 Indian Head Cent – $5,000+
This coin was struck three times by the mint.
- Extremely distorted design
- Heavy overlapping details
- Obvious multiple impressions
💵 Auction price: Over $5,000
Not a coin-roll find, but a legendary mint error.
2️⃣ 1958 Silver Quarter Brockage Error – $12,000+
This one can fit in a coin roll.
- Reverse side shows a mirror image of the front
- No normal reverse design at all
This error is called an obverse brockage.
⚠️ Beware of magician “double-headed” coins.
💵 Auction price: $12,000+
3️⃣ 1968 Penny Bonded to Costa Rica Coin – $15,000
A Lincoln cent fused with a Costa Rica 5-cent coin during minting.
- Normal reverse
- Completely abnormal obverse
- Two coins bonded together
💵 Auction price: $15,000
4️⃣ 1973 Kennedy Half Dollar Double Strike – $4,800
A common coin turned rare:
- Struck twice
- Heavy distortion on Kennedy’s face
- Clear doubled design
💵 Auction price: $4,800
5️⃣ 1973-S Proof Half Dollar with Penny Embedded – $16,200
A proof coin with a 1-cent planchet struck into the obverse.
- Mirror-like proof surface
- Copper metal embedded in coin
💵 Auction price: $16,200
6️⃣ Double-Denomination Half Dollar / Quarter – $5,760
One of the coolest errors:
- Half dollar design struck over a 1972 Washington quarter
- Both designs visible
Called a double denomination error.
💵 Auction price: $5,760
7️⃣ 1977 Eisenhower Dollar Struck on Silver Planchet – $7,475
1977 Eisenhower dollars were not supposed to be silver.
But this one was struck on an old 40% silver planchet.
How to spot it:
- White edge
- No copper stripe
- Heavier weight
💵 Auction price: $7,475
8️⃣ Dollar Coin with a Staple Embedded – $9,000
Yes… a real metal staple.
- Staple struck into Washington’s head
- Still embedded in the coin
💵 Auction price: $9,000
9️⃣ 2000 Penny Struck on Quarter Planchet – $14,000+
A penny design on a quarter-sized coin.
- Much larger than normal penny
- Copper color
- Wrong thickness
💵 Auction price: $14,000+
🔟 Sacagawea Dollar + State Quarter Mule – $66,000
One of the rarest modern U.S. errors ever:
- Front: Sacagawea $1 coin
- Back: South Carolina state quarter
This is called a mule error (two different coins combined).
💵 Auction price: $66,000
🎁 Bonus Coin: 18-Times Struck Sacagawea Dollar – $4,000
- 2000-P Sacagawea dollar
- Struck 18 times
💵 Auction price: $4,000+
🧠 Final Tips for Finding Valuable Errors
Check coins that:
- Look distorted
- Have missing or extra designs
- Are the wrong color
- Are too small or too large
- Feel heavier or lighter than normal
👉 Never clean them
👉 Get them authenticated & graded
🪙 Free Silver Coin Giveaways
Every Tuesday & Friday – 7:00 PM EST on the Whatnot app:
- Free silver coins
- $15 sign-up credit
- Buy from any seller
🏁 Final Thoughts
Some mint errors fit in your pocket…
Others sell for the price of a car 🚗
Before you spend your change:
Look closely.
Your next coin could be worth $5,000… $15,000… or even $66,000+.
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