Cartoon illustration with black and orange text on a white background.
On June 19, 1978, Magic Mountain, a California-based amusement park, debuted one of the world's biggest and fastest wooden roller coasters, the Colossus. This button commemorates its opening day.
Source: (n.d). Magic Mountain | Valencia, California. Retrieved from http://www.scvhistory.com/scvhistory/lw2267.htm