I took this photo during a June 2001 visit to the Illinois Railway Museum, located in Union Illinois.
I was fortunate enough to have grown up in the city of Chicago, during the 1960's and 70's era when these electric buses were rolling out their final miles. As a little boy, I frequently rode these with My family, on the Route # 52 Kedzie/ California Avenue bus line. The Chicago Transit Authority had 20 Electric Trolleybus Routes, and from 1959 onward, they were gradually being phased out. The last CTA trolley buses operated on the weekend of March 25th 1973. Many were sold to Mexico secondhand. The Illinois Railway Museum operates these during the summer season, on selected scheduled weekends.