This is a set of the three standard issues, all examples of which are housed together in a single large size NGC holder. Included are: silver, HK-871, Rarity-5; bronze, HK-872, Rarity-4; and gold, HK-873, Rarity-6. The original mintages of these three different metallic compositions is 750, 250 and 314 pieces, respectively. Issued under the guidance of prominent numismatists Hans Schulman and Abe Kosoff as a proposition for a worldwide currency under the jurisdiction of the then new United Nations. The idea was unworkable at the time, but remnants of the concept exist today in the Euro, currently in use by at least a portion of the world. (Total: 3 items)，，，
