Silver certificates were a type of U.S. paper currency issued between 1878 and 1964, representing a promise that the holder could exchange the certificate for a specific amount of silver. Initially, these certificates could be redeemed for their face value in silver coins, and later, for raw silver bullion. The designs of silver certificates varied over the years, with notable features including blue Treasury seals and serial numbers. They were gradually phased out after the U.S. abandoned the s