The 1971 Denver mint coins are part of the Eisenhower Dollar series, which were issued to honor President Dwight D. Eisenhower following his death. These dollars feature an obverse design depicting Eisenhower and a reverse design showing an eagle landing on the Moon, symbolizing the Apollo 11 mission. A roll typically contains 20 coins, making it a convenient way for collectors to acquire these pieces. Coins from the Denver mint are identified by a distinctive "D" mint mark, and their collectible value can vary based on condition, rarity, and demand among numismatists.