The 2012-S US Mint Silver Proof Set includes 14 coins with a denomination ranging from dollar to cent, all composed of 90% silver. Minted in San Francisco, the set comes with a Certificate of Authenticity from the U.S. Mint, ensuring its authenticity and quality. This collection is a valuable addition to any coin enthusiast's collection, showcasing the beauty and craftsmanship of United States coins from the year 2012.