Interior view of a 1920's era CTA 4000 series rapid transit car. The Illinois Railway Museum September 1982 Members Weekend. Union Illinois USA.

A group of passengers are seen enjoying a demonstaration ride on the museum's mainline.
This is an interior view of a Chicago Rapid Transit Company, later Chicago Transit Authority after 1947,
4000 series air brake equipped rapid transit car.
This interior view of reversible rattan seats, glass incadescent lamp shades , and vintage advertisements
were shared by many a Chicago CTA commuter until approximately 1973.