Chicago trolleybuses acquired for preservation by the Illinois Railway Museum. Additional photos of Chicago trolleybuses are available at the Illinois Railway Museum Web site.

CSL trolleybus #84, built Brill in 1930.

CTA trolleybus #193, built by Brill in 1937.

CTA trolleybus #9631, one of 349 trolleybuses built by Marmon-Herrington in 1952 from the largest trolleybus order ever in America. On September 30, 1997, bus was displayed in downtown Chicago in commemoration of the CTA's 50th anniversary.

CTA one of a kind "Queen Mary" articulated trolleybus #9763, built by Twin Coach in 1948.