Commemorative medal from the 1904 Louisiana Purchase Exposition. Bronze, 70 mm x 70 mm, 143 gm, designed by Adolph A. Weinman and struck by the US Mint at Philadelphia. The front depicts Columbia with her arms spread wide and holding the United States flag next to a youthful maiden representing the Louisiana Purchase Territory; against a rising sun, the girl is disrobing the cloak of France, with raised text and date encircling the image, "Universal Exposition–Saint Louis–United States of America, MCMIV." The reverse shows a large eagle with wings spread above a tablet, "Commemorative Medal, Louisiana Purchase Exposition," with two dolphins below symbolizing the nation's eastern and western boundaries, the Atlantic and Pacific oceans. Weinman later designed the Walking Liberty half-dollar and Mercury dime.