In the realm of collectible coins, the United States has produced various types, including patterns and trial coins. The 1979 One Dollar coin, specifically the Anthony dollar, is notable for its unique design and limited production, making it a sought-after item among collectors. Patterns and trial coins, often created to test designs or minting processes, can be particularly rare and valuable, as they may not have been released for general circulation. Collectors prize these coins for their historical significance and the story they convey about the evolution of U.S. currency.