In 2000 to celebrate the Library of Congress, the United States Mint for the first time ever released a very Limited Issue Bi-Metallic $10 Ten Dollar Platinum and Gold Proof Coin struck in solid .999 Platinum and solid .999 Gold and has been Certified Slabbed and Graded by PCGS as PR69 DCAM.
The obverse depicts the hand of Minerva, the Goddess of Wisdom, raising the torch of learning aside the dome of the Thomas Jefferson Building while the reverse is marked with the Library of Congress seal encircled by a laurel wreath symbolising its National accomplishment.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.