The first gold commemorative coin was the 1903 Louisiana Purchase Exposition Gold Dollar. It came in two varieties--Thomas Jefferson and William McKinley.
GreatCollections has sold 62 of the 1905 Lewis and Clark Exposition Gold Dollar in the past 10 years, selling at prices from $203 to $35,000, in grades 1 to 67. Of these, 5 were approved by CAC.
The industry number is 7448.