Collectible coins can be categorized into various types, including commemoratives, bullion, and historical coins. The United States 50 cent coin, commonly known as the half dollar, has seen multiple designs, with notable issues like the Walking Liberty and the Kennedy half dollar. The Confederate States of America issued its own coins during the Civil War, which are highly sought after by collectors due to their historical significance. The 1947 coins, particularly if related to specific events or designs, can also hold numismatic value, depending on conditions and mint marks.