2007-2008 US Mint American Legacy Proof Sets - 31 Coins Total, 2 Complete Sets Over 3oz Of Silver. 2007-2008 Set of US Mint American Legacy Proof Collections - 31 Coins Total, 2 Complete Sets. The 2007-s Legacy Set contains a total of 1.54 oz of Silver and 16 coins, including two 90% Silver commemorative dollars: one honoring the quadricentennial of the founding of Jamestown and another honoring the 50th anniversary of the desegregation of Little Rock Central High School, the inaugural 4 releases of the Presidential dollars (Washington, Adams, Jefferson, and Madison), one Jefferson nickel, Five State Quarters (Montana, Washington, Idaho, Wyoming, Utah), a Sacagawea dollar, Kennedy Half Dollar, Roosevelt Dime and Lincoln Cent. The American Legacy mint proof set was only produced for 4 years. The 2008-s US Mint American Legacy Proof Set contains a total of .7734 oz of Silver. This set contains 15 coins, including a 90% Silver Bald Eagle commemorative dollar, 4 Presidential dollars (Monroe, Adams, Jackson, Van Buren), one Jefferson nickel, Five State Quarters (Oklahoma, New Mexico, Arizona, Alaska, Hawaii), a Sacagawea dollar, Kennedy Half Dollar, Roosevelt Dime and Lincoln Cent. The American Legacy mint proof set was only produced for 4 years.