Group of 4 United States Mint Silver Proof Set 2007-2010 60 coins. Approximately 6 ounces of .999 pure silver in these 4 sets. All 4 sets include, 4 proof Presidential dollars, , 5 90% Silver Proof State Quarters, a 90% Silver Proof Kennedy Half Dollar, a 90% Silver Proof Roosevelt Dime, as well as Proof Jefferson nickel, proof Lincoln cent, and the Sacagawea Proof Dollar coin. The 2009 Set contains 6 90% Silver Proof Quarters, 4 Proof Lincoln Cents, the inaugural year of the Lincoln life program. This is a much more difficult and sought after set. All sets Complete with Original Packaging and COA.