Modern commemoratives are collectible coins issued by the United States Mint that celebrate significant events, people, or places. The 1987 One Dollar coin is part of this series, commemorating the 200th anniversary of the U.S. Constitution. These coins are often minted in limited quantities and can feature special designs, making them appealing to collectors. They are usually available in various compositions, such as silver or gold, and can vary in value based on rarity, condition, and demand.