Released in 1997, the Platinum American Eagle is the only investment-grade Platinum coin from the United States Mint. It is also the only bullion coin the United States Government guarantees for weight, content, and .9995 purity. The 1/4 oz Platinum American Eagle has a $25 face value and contains 1/4 of a troy ounce of Platinum.
Burnished Platinum Eagles are created through a specialized minting process. Burnished coin blanks are hand fed into specially prepared presses one at a time. Although the appearance of the coins is similar to the bullion versions, these uncirculated versions typically have a superior strike and finish and are handled more delicately. These coins were referred to as collectible uncirculated versions and feature the "W" mintmark for West Point.