Here is your chance to own the first ever complete BLACK RUTHENIUM EDITION 2021 JFK Kennedy Half Dollar U.S. Coins. This Black Ruthenium 2021 JFK Kennedy Half Dollar U.S. 2-Coin Set includes both Philadelphia and Denver Mintage.  To highlight the original coin design, the Merrick Mint clad each coin entirely in Black Ruthenium. Black Ruthenium is a type of platinum metal that looks like a dark platinum, but is 100 times Rarer. Ruthenium is a chemical element with the symbol RU & Atomic # 44. It is a rare transition metal belonging to the platinum group of the periodic table. Each coin comes in a premium coin capsule with a Certificate of Authenticity to guarantee that your coin is authentic and recognized by every monetary authority around the world, assuring its Collector Edition status.