postcard - from miu0206, Hong Kong by Jassy-50
<br /><i>Via Flickr:</i> <br />The Denver Zephyr was a passenger train operated by the Chicago, Burlington and Quincy Railroad between Chicago, Illinois, and Denver, Colorado. Regular service for the route began May 31, 1936. The trainsets were refurbished in the winter of 1948-49 and operated in DZ service until October 1956 (Wikipedia).
From the Postcrossing “You Choose 3 Cards Unwritten” tag.