Unique Metals Buffalo copper rounds are a classic American design, inspired by the early 20th century Buffalo nickel. Each round features a Native American profile on the obverse and a standing bison on the reverse, struck in .999 fine copper. With a weight of one ounce and a diameter of 39 mm, these rounds are perfect for stacking, display, or gifting. The set includes 20 rounds in a stackable plastic tube, totaling 20 ounces of copper, making it a substantial addition to any collection. Copper naturally darkens over time; handle by edges and store in capsules or the tube to maintain brightness. These privately produced rounds are not legal tender and are ideal for copper stackers, coin enthusiasts, and American design fans.