Collectible coins are often valued for their historical significance, rarity, condition, and demand among collectors. The United States has produced a variety of collectible coins, including the iconic 1913 Buffalo Nickel, which is notable for its rarity and design featuring a Native American profile. One Dollar coins in the U.S. have varied in design over the years, with examples like the Morgan and Peace dollars being highly sought after. Collectors often focus on specific types, such as silver coins, gold coins, or commemorative issues, depending on personal interest and investment potential.