2007 Mint Proof Set In Original Case! 14 Coins Inside!. The 2007 Proof Set marked the introduction of a new series of golden dollars featuring the former Presidents in the order served. With the additional Presidential Dollars included, the size of the set expanded to 14 different coins. This marked the largest sized annual proof set for the modern era to date, although it would be eclipsed a few years later. Each standard 2007 Proof Set contained the four Presidential Dollars featuring George Washington, John Adams, Thomas Jefferson, and James Madison, the five State Quarters featuring Montana, Washington, Idaho, Wyoming, and Utah, and finally the Sacagawea Dollar, Kennedy Half, Roosevelt Dime, Jefferson Nickel, and Lincoln Cent. All coins were struck at the San Francisco Mint and feature a deep cameo finish. Packaging for the regular clad 2007 Proof Set was adjusted to account for the four Presidential Dollars. Three separate plastic lenses were used, containing the new dollar series, the State Quarters, and the remaining coins. These were placed within two illustrated cardboard boxes held within a white slipcase denoting the contents. A certificate of authenticity was also included.