ELI5: Explain Like I'm 5

Silver certificate (United States)

A silver certificate is a type of paper money that used to be printed in the United States. It was issued by the U.S. Treasury, which means the U.S. government promised to give back silver coins if you had silver certificates. So if you had silver certificates, you could exchange them for an equal amount of silver coins. The silver coins could then be used to buy something.