Collectible coins, also known as numismatic coins, include various types such as coins that are rare, historical, or feature unique designs. In the United States, collectible coins often include various denominations, mint marks, and special editions like commemorative coins. The value of these coins can be influenced by their rarity, condition, demand, and historical significance. Collectors often seek out specific types such as gold and silver coins, vintage currency, or limited-release coins from the U.S. Mint.