The International Trade Unit 1oz .999 Silver Round / Bar / Hexagon is a highly sought-after precious metal investment. Made of pure silver with a fineness of 0.999, this unique piece has a hexagonal shape and weighs 1 oz. Produced in the United States in the early  1980s, this silver round/bar is a valuable addition to any collection. Its rarity and impressive composition make it a popular choice among collectors and investors alike.