The 1971 U.S. Mint Proof Set is a five-coin collection expertly struck at the San Francisco Mint, continuing the tradition of producing high-quality Proof coinage with brilliant mirror-like finishes and sharply defined details. The set includes the Lincoln Memorial Cent, Jefferson Nickel, Roosevelt Dime, Washington Quarter, and Kennedy Half Dollar, all bearing the "S" mintmark. Unlike previous years, the 1971 Kennedy Half Dollar is struck in copper-nickel clad composition, marking the first Proof Set to contain a Kennedy Half with no silver content after the discontinuation of the 40% silver alloy in 1970. Each coin was specially struck using polished dies and carefully prepared planchets to achieve exceptional clarity, frosted devices on many examples, and outstanding eye appeal. The coins were sealed in a protective hard plastic lens and packaged in an official U.S. Mint envelope. With a mintage of 3,220,733 sets, the 1971 Proof Set represents the beginning of a new era in modern U.S. coinage and remains a popular addition to collections for its superb craftsmanship and historical significance.