This 2015 Silver & Clad Proof mint set is a must-have for any coin collector. With uncirculated coins made of bronze, minted in San Francisco by the U.S. Mint, this set includes multiple years of coins with proof strike types. The coins are certified by the U.S. Mint, making them even more valuable. This set is perfect for anyone looking to add to their collection of U.S. coins and paper money. Selling a 60 year old collection. All sales are final.