This wind-up toy was manufactured by Wolverine Supply and Manufacturing Company in the 1930's. It is lithographed tin and features a clockwork mechanism that can be activated with a metal key. The cars move through the levels of the structure on tracks in a continuous pattern. This continuous movement was a trademark of the company's toys.
Ralph L. Tomlinson Toy Collection, "Learning Through Play" Exhibit in Leatherby Library
Chapman University, Leatherby Library, Ralph L. Tomlinson, toys, antique, antiques