The coin in question is a 2000 Kennedy Half Dollar, specifically minted at the San Francisco Mint, as indicated by its "S" mint mark. It is part of the Kennedy Half Dollar series, which has been a staple in American coinage since its introduction in 1964, commemorating the legacy of President John F. Kennedy. This particular coin is a Proof version, meaning it was produced using a special minting process that gives it a shiny, mirror-like finish and sharper details compared to regular circulation coins. This coin has a diameter of 30.6 mm and weighs 11.34 grams, with a composition of copper-nickel clad over a copper core. With a total mintage of 3,082,483, this 2000 Kennedy Half Dollar is a collectible piece of numismatic history, appealing to both coin collectors and those interested in modern American monetary heritage. It has a face value of 50 cents (0.500 USD) but its actual market value may vary based on its condition and demand among collectors. This coin exemplifies quality craftsmanship and serves as a beautiful representation of the coinage of the United States.