The 1971 Clad Proof Set from the U.S. Mint comes in its original government packaging and includes coins of denomination 1C, 5C, 10C, 25C, and 50C. These uncirculated coins are made of a copper alloy and copper-nickel composition, struck in proof quality at the San Francisco Mint. Each coin is certified by the U.S. Mint, making this set a valuable collector's item for those interested in US coins from the early 1970s.