The ball closure key chain is made of a durable jeweler's metal. The stylish design includes a genuine half dollar set in a sturdy silvertone bezel. The Proof JFK Half Dollar minted from 1964 to present, has a mirror like finish. Proof coins are struck more than once with a higher pressure. The obverse of half dollar features a bust of John F. Kennedy and the reverse displays the Presidential Seal. The coin was designed by Gilroy Roberts and Frank Gasparro. Coins are historical, collectible and designed to show pride in your heritage. Mint marks and years will vary. Includes a Certificate of Authenticity.