July 2, 1921. Another view of those straw-hatted boxing fans following the Dempsey-Carpentier fight from the Washington Star building in Washington, D.C. View full size. National Photo Company Collection glass negative.
There are actually a few guys mixed in there with Panama hats among all the boaters, along with the inevitable caps and a smattering of fedoras, derbies, campaign hats, a service cap, and one kid with a beanie.