Collectible coins include various types such as currency, proof coins, and commemorative editions, often designed to celebrate significant events or figures. Medals, particularly those produced by the U.S. Mint, are not considered legal tender but are often issued to commemorate specific achievements or milestones. The U.S. Mint has historically produced a range of medals, including those for military service and notable historical events. In 2007, the U.S. Mint released several commemorative medals, which reflect the rich heritage and accomplishments of the United States.