1943 Copper Penny (U.S.) While most 1943 pennies were made from steel due to WWII, a few were accidentally struck in copper. One sold for over $1.7 million—check your change jars!
2007 Double Die Penny (U.S.) A rare minting error caused a visible doubling in the design. Some of these error coins have fetched up to $50,000+, turning pocket change into serious profit.
1913 Liberty Head Nickel (U.S.) Only five are known to exist, and one sold for nearly $4.5 million. A man unknowingly owned one for decades before discovering its true value.
2000-P Sacagawea Dollar + Washington Quarter Mule (U.S.) This bizarre error features the front of a quarter and the back of a dollar. Fewer than 20 are known, with one selling for $192,000 at auction.
1894-S Barber Dime (U.S.) With only 24 ever minted and just 9 known today, this dime has auctioned for over $2 million. One was found in a child's coin collection!
1982 No Mint Mark Roosevelt Dime (U.S.) A minting oversight left some dimes without a mint mark. One lucky finder sold it for over $75,000, proving it pays to look closely at your spare change.