The 2005 Platinum Eagle is part of the United States Mint's series of platinum bullion coins, issued to promote the value of platinum. The ten-dollar denomination features a unique design that changes annually, reflecting various themes related to American history and culture. The coin is composed of .9995 pure platinum and has a distinctive diameter and weight, making it a significant collectible for both investors and numismatists. The 2005 design specifically showcases a representation of liberty on the obverse and specific symbolic imagery related to the year on the reverse.