Scarce button from the St. Louis 1904 Louisiana Purchase Exposition, which was held concurrently with the III Olympic Games. The two-sided button, 44 mm, reads “Iowa Press” on one side and the other shows a Louisiana Purchase ‘A Deed of the Pen’ flag with upper text: “Universal Exposition, St. Louis, 1904.” The button is suspended from a Fleur-de-lis, which is in turn pinned to a yellow ribbon marked “St. Louis, May 16-21, 1904” and that measures 127 mm. In fine condition, with wear and fraying to where the pin connects to the ribbon.