The item in question is a commemorative coin issued by the United States Mint in 2001. It is composed of silver and features depictions of an American bison, often referred to as a buffalo, and a Native American. Such pieces are typically produced to celebrate significant events or figures in American history.
These coins serve as both a tangible piece of numismatic history and a symbol of American heritage. Their silver content provides intrinsic value, while the imagery evokes the history of the American West and the relationship between Native Americans and the bison. These factors often contribute to their collectibility and potential appreciation in value over time.