Collectible coins, particularly from the United States, can include a variety of types and denominations, often sought after by numismatists. A 2013 dollar coin from the Denver mint may belong to series such as the Presidential Dollars or American Innovation Dollars. Each roll typically contains 25 coins and may carry premium collectibility depending on factors like condition, rarity, and historical significance. The Denver mint is one of the primary facilities for coin production in the U.S., contributing to the overall variety of collectible currency available.