Public domain
Chicago, Illinois. Pullman porters receiving reservation diagrams for their trains through pneumatic tubes from the reservation room. This is in the passenger agent's room of the Union Station
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineChicago, Illinois. Pullman porters receiving reservation diagrams for their trains through pneumatic tubes from the reservation room. This is in the passenger agent's room of the Union Station. 1943-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.