Collectible coins, including the United States Platinum Eagle series, are highly sought after by numismatists and investors. The 1998 Platinum Eagle, part of the 10 Dollar denomination, features a striking design and is made from 99.95% pure platinum. The series was first issued in 1997 and continues to be produced in various designs, commemorating different themes. Collectors value these coins for their artistry, rarity, and precious metal content, making them a significant aspect of American numismatic history.