The 2012 US Mint Limited Edition Silver Proof Set is a highly sought after collector’s item featuring a set of uncirculated silver coins with a fineness of 0.999. This set, minted in San Francisco by the United States Mint, includes coins with a striking proof finish and comes with a Certificate of Authenticity. The limited edition status adds to its value and desirability among coin enthusiasts and collectors looking to add rare and high-quality coins to their collection.