This 1971 S United States Proof Set is a must-have for coin collectors. The set, which includes 1C, 5C, 10C, 25C, and 50C coins, is in pristine condition and comes in its original mint packaging. Each coin consists of copper and copper-nickel composition with a proof strike type from the San Francisco mint location. While the coins are ungraded, their uncirculated quality is evident. This set is a valuable addition to any collection and a testament to the exceptional craftsmanship of the United States Mint.