This set includes 12 US Mint Presidential $1 Coin Proof Sets, with 4 sets each from the years 2007, 2008, and 2009. The coins feature 12 different Presidents, including Andrew Jackson, John Tyler, Martin Van Buren, John Quincy Adams, James Monroe, George Washington, John Adams, Zachary Taylor, Thomas Jefferson, James K. Polk, James Madison, and Benjamin Harrison. Each set is certified by the US Mint and contains coins struck in proof quality at the San Francisco Mint. The coins have not been circulated and are in pristine condition in their original mint casing, each with the original Certificate of Authenticity.