Collectible coins, such as the 2011 Proof Sets from the San Francisco Mint, are specially minted to showcase high-quality finishes with mirror-like surfaces. These sets often include various denominations, showcasing designs reflective of U.S. history and culture. The 1 One Dollar coin is a notable example within these sets, featuring significant historical figures or events. Proof coins are produced with advanced techniques to produce sharper images and finer details, making them highly sought after by collectors and investors alike.

Item Denomination Series Year Mint
2011-S $1 Presidential Proof Set 4 Coins $1 (One Dollar) Proof Sets 2011 San Francisco