Shorpy photo Steam era question

[Charlie B]

I found this:    
Here. <!-- m --><a class="postlink" href="http://www.unionstationmp.com/wp-content/uploads/2012/01/RailwayAge-1925-0704-Chicago-Union-Station.pdf">http://www.unionstationmp.com/wp-conten ... tation.pdf</a><!-- m -->

Thanks for all of your answers, I still never have seen this anywhere.
Charlie