The 2011 Silver San Francisco Mint Silver Proof Set is a 14-piece collection of uncirculated silver coins, 7 of them with a fineness of 0.9 Silver. Each piece is struck in proof condition at the San Francisco Mint, certified by the U. Mint, and comes with a Certificate of Authenticity. This set is a valuable addition for collectors of US coins, showcasing a prestigious assortment of coins from a reputable mint. This set includes the Kennedy half dollar, the 5 Quarters, the Roosevelt dime all in 90% Silver, and the Sacagawea dollar, the Four Presidential dollars, Jefferson nickel, and the Lincoln penny.