1920s Chicago Transit Posters

“Boul Mich” by the Elevated Line by Rocco D. Navigato (via Chicago-L.org)

Chicago-L.org is a site dedicated to, you guessed it, the Chicago “L” trains. The have a small, but gem filled collection of transit posters from the 1920s. There’s a wealth of other information on the site as well, however difficult to navigate.