Collectible coins include various types such as bullion coins, commemorative coins, and limited-edition releases, each appealing to different collectors. The United States Mint produces a range of collectible coins, including the Three-Dollar Gold Coin and the Silver Eagle series. The 2017 Silver Eagle, part of the American Silver Eagle program, features a design that embodies American liberty and is minted in one troy ounce of .999 fine silver. These coins are popular among investors and collectors due to their intrinsic metal value and historical significance.