For sale is a 2012-S United States Mint SILVER Proof Set, consisting of 14 coins. This set includes the Certificate of Authenticity and Original Government Packaging box. The coins are in an uncirculated condition and have a fineness of 0.9. The set was struck in San Francisco and is certified by the U. The coins are of the denomination of various values and feature various designs, all struck in proof strike type. This is a great addition to any coin collection and a must-have for any fan of United States Mint coins.