1997 United States Mint Prestige Proof Set With Box & COA. This six-piece Proof set includes all Proof coins issued in 1997 plus a commemorative Botanical Gardens proof Silver dollar, all in the original U.S. Mint presentation case.Set Highlights: Silver dollar contains .7734 oz of Silver. Dime, quarter and half dollar are clad. Comes in original box, and may or may not include a certificate of authenticity. Includes a proof example of the following: Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Washington Quarter, Kennedy Half Dollar and Botanical Gardens Silver dollar.