File:UP SD45 and DD35.jpg

This image (call number OP-19360) is from the collection of the photographs of the late Otto Perry (b.1894, d.1970) held at the Western History Department of the Denver Public Library (http://photoswest.org/), and is copyrighted. The department actively encourages fair use of its images for educational purposes.

It is believed that the use of these materials

• for educational purposes, in articles relating to the subject of the photograph,
• on the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation,
• where the resolution used is insufficient for print use and thus does not materially harm the licensing of these images for publication, and
• where no free alternative is available,

qualifies as fair use. Any other use of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Fair use for more information.

Additionally, permission may have been received to place this image on Wikipedia, but the terms of the permission would not include third party use. If this is the case, the permission will be noted below.

Use that does not fall under fair use may require the permission of the Denver Public Library.

To the uploader: please add a detailed fair use rationale for each use, as described on Trains:Image description page, as well as the source of the work and copyright information.