1: Discover the value of American nickels in circulation. Learn about rare dates and mintmarks that make these coins highly sought after by collectors.

2: The 1943-S Jefferson Nickel is a key date in the series. With a mintage of only 21 million, this coin can fetch a premium in the market.

3: Another valuable nickel is the 1939-D Jefferson Nickel. Look out for this coin with a mintage of just over 3 million, making it a rare find.

4: The 1950-D Jefferson Nickel is also highly prized for its low mintage. Keep an eye out for this coin, as it can command a high price in the collecting world.

5: Collectors also seek out the 1938-D Jefferson Nickel. With a mintage of around 5 million, this coin is considered scarce and can be worth a significant amount.

6: The 1955-S Jefferson Nickel is another valuable coin to look for. With a mintage of just over 8 million, this date is highly sought after by collectors.

7: The 1942-S Jefferson Nickel is a key date in the series. Keep an eye out for this coin with a mintage of only 13 million, as it can be worth a premium.

8: Also sought after is the 1947-D Jefferson Nickel. With a mintage of just over 37 million, this coin is considered scarce and can fetch a high price.

9: In conclusion, American nickels can hold significant value. Keep an eye out for rare dates and mintmarks to add to your collection and potentially increase its worth.