The 2012 US Mint Silver Proof Set includes 14 coins, with 7 of them being 90% silver (Slight toning on quarters). This set comes with a box and Certificate of Authenticity from the U. Mint, making it a valuable addition to any coin collection. The coins are uncirculated and struck with a proof finish, showcasing the intricate details of each design. Produced in San Francisco, this is a fantastic set that celebrates the craftsmanship and history of the United States Mint.