A coin can be worth a ton of money -- a pretty penny, one might say -- if it's rare and has enough historical significance.
It was also one of two known examples from that set to contain an error: a missing “S” mint mark, which made ... including two 1913 nickels and two 1804 silver dollars—but this is the ...
How to check: Look for a Liberty Head nickel dated 1913 with no mint mark. Why it’s rare: It’s among the first U.S. silver dollars ever minted. How to check: A large, silver coin with this ...