This is a photo of the same train shown here File:Union Pacific City of Denver 1940.JPG. This type of train was taken from service in 1953 and scrapped by the Union Pacific.
The photo has no copyright markings on it as can be seen in the links above.
It was created for publicity purposes-distribution to the media. *United States Copyright Office page 2 "Visually Perceptible Copies The notice for visually perceptible copies should contain all three elements described below. They should appear together or in close proximity on the copies.
2 The year of first publication. If the work is a derivative work or a compilation incorporating previously published material, the year date of first publication of the derivative work or compilation is sufficient. Examples of derivative works are translations or dramatizations; an example of a compilation is an anthology. The year may be omitted when a pictorial, graphic, or sculptural work, with accompanying textual matter, if any, is reproduced in or on greeting cards, postcards, stationery, jewelry, dolls, toys, or useful articles.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
{{Information |Description=Photo of ''The City of Denver'' Union Pacific Streamliner. |Source=[http://www.ebay.com/itm/1940-Union-Pacific-Streamliner-City-Denver-Wire-Photo-/270828636380?pt=Art_Photo_Images&hash=item3f0ea508dc#ht_3913wt_1397 eBay item]