A Curt Teich linen postcard showing a reversible escalator in Chicago's first subway, two routes covering 8 3/4 miles.
Escalator in Chicago's Initial Subway
Sheaff : ephemera
A place for show-and-tell, wondering aloud, and wandering the trails of curiosity . . . Comments, corrrections, additional information, fresh insights, other interpretations, more images, or related observations will be welcomed!
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