This article alludes to photos of the weapons in question, yet doesn't run them.
The weapons are believed to be among those seized after a raid April 13, 1933, at the outlaws’ apartment hideout near 34th Street and Oak Ridge Drive in Joplin.http://www.joplinglobe.com/local/x647568197/Rapid-fire-bidding-greets-Bonnie-and-Clyde-guns
Five lawmen in two cars, armed only with handguns, descended on the apartment, and a bloody gunfight ensued. Two of the lawmen — Newton County Constable John Wesley Harryman and Joplin police Detective Harry McGinnis — were killed. Clyde Barrow, Buck Barrow and fellow gang member W.D. “Deacon” Jones were injured.
After the raid, police confiscated guns, a camera and personal items from the apartment, which was listed on the National Register of Historic Places in 2009. The film in the camera, which was developed by The Joplin Globe at the time, was of special interest. The images on the film, which include some with the guns, were the first to identify the outlaws. Historians say the publication of those images in newspapers across the country spelled the beginning of the end for the duo.