1: Introduction Discover the most valuable American coins still in circulation.

2: 1943 Copper Penny The 1943 copper penny is one of the rarest American coins, fetching thousands at auction.

3: 1955 Double Die Penny The 1955 double die penny is a valuable coin due to its unique minting error.

4: 1972 Eisenhower Dollar The 1972 Eisenhower dollar is highly sought after by collectors for its silver content.

5: 2004 Wisconsin State Quarter The 2004 Wisconsin state quarter with an extra leaf is a valuable find for coin enthusiasts.

6: 1982 No Mint Mark Dime The 1982 no mint mark dime is a rare error coin that can fetch a high price.

7: 2005 Speared Bison Nickel The 2005 speared bison nickel is worth more than its face value due to its minting error.

8: 1999 Wide "AM" Penny The 1999 wide "AM" penny is a valuable coin for collectors due to its distinct design.

9: Conclusion These valuable American coins still in circulation are prized possessions for both numismatists and hobbyists alike.