This 1999 S United States Mint Silver Proof Set with COA is a must-have for any coin collector. The set includes a stunning collection of coins that were minted in the United States. Each coin has a proof strike type and comes with a Certificate of Authenticity. The set is uncirculated. This is a great opportunity to add a valuable and beautiful collection to your portfolio. Don't miss out on this chance to own a piece of American history.