Linen postcard from 1939 showing one of Chicago and North Western Line Railroad's new "400" streamliner passenger trains.

From the front: "400 Streamliners serve many cities between Chicago and Wisconsin, Upper Michigan, and Minnesota."

From the back: "Powerful diesels provide a smooth flow of power and new type shock absorbers on the trucks of the new 400 Streamliner Fleet ensure a smooth ride."

Published in the USA by American Colortype Chicago-New York Printed Letterpress

The postcard is unused and in very good condition (the top right corner has a barely noticeable small dent from where it was secured in a postcard album, see photos)