The 2007 S US Mint Silver Proof Set includes a collection of uncirculated silver coins struck in proof quality at the San Francisco Mint. This set includes a number of presidential dollars coins, each with its own unique design. The set comes with a box and a Certificate of Authenticity (COA) from the U. Mint, making it a valuable addition to any coin collector’s portfolio. Made in the United States, this set showcases the craftsmanship and artistry of American coinage.