The 2011 edition of the United States Mint America the Beautiful Quarters Proof Set features the five 2011 releases in the America the Beautiful Quarters® Program. In 2011, the sites being featured are Gettysburg National Military Park in Pennsylvania, Glacier National Park in Montana, Olympic National Park in Washington, Vicksburg National Military Park in Mississippi and Chickasaw National Recreation Area in Oklahoma. Each of the five quarters bears the “S” mint mark of the United States Mint at San Francisco. In this set you will receive all five 2011 quarters in pristine proof condition, protectively encased in a clear plastic lens. Comes complete with certificate of authenticity and U.S. Mint Box.