WASHINGTON - The United States Mint announced today that the 2007 United States Mint Silver Proof SetTM will be released Thursday, August 23, 2007, at 12:00 noon (ET) The 2007 United States Mint Silver Proof Set, priced at $44.95, features proof versions of the five quarters issued in the United States Mint’s 50 State Quarters® Program, the Kennedy half-dollar, and the Roosevelt dime, all composed of 90 percent silver. The set also includes proof versions of the Golden Dollar featuring Sacagawea, the Jefferson 5-cent coin (nickel), the Lincoln one-cent coin, and for the first time, the new Presidential $1 Coins honoring the first four Presidents of the United States.