In 2005, after an 8 year absence, the United States Mint re-introduced a "Prestige" Proof Set titled, the Legacy Collection. Limited to only 50,000 this special collection sold out in a matter of hours.
This is the 16 coin collection version on the Legacy Set for 2007, it includes Proofs of the following:
Lincoln Cent
Return to Monticello Nickel
Roosevelt Dime
Kennedy Half Dollar
Sacagawea Dollar
All 5 of the 2007 State Quarters in Clad: Montana, Washington, Idaho, Wyoming & Utah
All 4 Presidential Dollars, which include: George Washington, John Adams, Thomas Jefferson & James Madison
PLUS...
the Jamestown Silver Proof Dollar and the Little Rock Silver Dollar!