What is the value the 1972 small silver dollar with Eisenhower on it?

If the coin is smaller than 38.1mm, then it either was not issued by the US Mint and thus has no numismatic value or it was struck on a half dollar planchet. If the design on your coin is complete and has no missing Words or numbers then it is not from the US Mint and has no numismatic value. If it about the size of a half dollar and part of the design is missing then it is could be an error coin. If you think it could be an error coin, you may want to take it to a dealer for identification.