If it is a coin from the U.S., it is probably worth only 50 cents unless it has some flaws to it, as some people collect only flawed coins. There are dozens of possible flaws, and there are lots of websites out there with detailed information about how a coin should look and what type of flaws are due to the mint, and ones that happen after the coin is in circulation. I have seen flawed coins go for hundreds of dollars and the flaws are so tiny, that the require a magnifying glass (especially for those of us over 40!). You can check our our website (our user name) and then after you shop in our store, you can search ebay for flawed coins to help learn about the different kinds of errors. That is only one source. Good luck!