A complete typeset of United States Silver Certificates. First issued in 1878, United States silver certificates were in use until 1968 but are still redeemable as legal tender. The nominated set contains an example of every type (design) issued. The 1878 $50 and $1,000 are represented by colored-seal proofs from a Bureau of Engraving and Printing specimen book presented to John Sherman during his tenure as Secretary of the Treasury. There are only two issued examples of the $50 known to exist and the $1,000 is unknown in issued form. The 1878 $500 is unique. Images of the 1878 $500 and $1,000 are missing from most major numismatic reference books. The silver certificate article has been significantly re-worked and referenced to accommodate this complete set of images, which is also currently nominated at English Wikipedia FPC .