Federal Reserve Bank Notes, issued 1915-34, are banknotes that are legal tender in the United States, together with United States Notes, silver certificates, Gold Certificates, National Bank Notes and Federal Reserve Notes. They had the same value as other kinds of notes of similar face value. Federal Reserve Bank Notes differ from Federal Reserve Notes in that they are backed by one of the twelve Federal Reserve Banks, rather than by all collectively. They were backed in a similar way to National Bank Notes, using U.S. bonds, but issued by Federal Reserve banks instead of by chartered National banks. Federal Reserve Bank Notes are no longer issued; the only U.S. banknotes still in production since 1971 are the Federal Reserve Notes.