Page 22 of W.F. Mangels Company Catalogue #4
Two different listings for Mechanical Shooting Gallery Background (different designs), Number 15 and 18.
Made with steel plates and iron frames. Describes mechanics of different targets and what happens when they're hit. Targets include steel and iron birds, ducks, boats, steel gongs, glass ball fountains, squirrels, tigers, lion, etcetera. Pulley system.