There are many resources that can help coin collectors, old or new, in determining the value and worth of the coins they have.
There are books out, The Red Book (A Guide Book of US Coins), The Blue Book (A Handbook of US Coins), as well as coin newsletters and catalogues available at any public or private library, coin dealers/shops anywhere in the US. There are also online guides for the prices of US coins available on the web, specifically the NumisMedia site. For a synopsis of the price of each coin, the following are the basic values of each cent, penny, or dime in the market.
The United States wheat-cent, the circulated ones
The price of these coins made prior to 1958, or those that are dated 1940, are currently being purchased by coin dealers for two cents each, or less. Those made before 1940 command a much higher price – from a few more cents to a few dollars.
The silver-dollars
Silver-dollars from the US, especially those made before 1935, have almost an ounce of silver in them. These coins are the favorites of coin collectors and could be sold for more than their actual value in silver if they are undamaged or not worn...