Postcard promoting the new 12 car version of Chicago, Burlington and Quincy railroad's train, Denver Zephyr.
Burlington Route
Not dated.  Circa 1936 to 1940s as the train was not equipped with any sleeping facilities in the beginning.  It was given an update in the 1940's and again in the mid 1950's when it added Colorado Springs to its stops.  This card does not show Colorado Springs on it.
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