Museum of Science and Industry Circus Mechanical Coin-Operated Wagon and Big Cats Display. Circa 1935. Three-quarter size wooden circus wagon replete with two snarling fabric-covered big cat models (one tiger, one leopard) behind the barred sides. Painted in gilt, red, silver, with mirrored accent panels, sitting on brightly painted wheels. With coin-operated mechanism; when a dime is deposited, the big cats roar. Approximately 8 x 6 ? x 4?. This wagon was part of the Museum of Science and Industry Chicago?s circus exhibit for decades, and sat at its entryway. Mechanism not tested. Third party transportation required.