Yes, it’s a model - 1
        
        
          1: "Shelby pusher C232-12 with GP40 6697 and B30-7
        
        
          5556 keeps the slack bunched on unit coal train T474-11
        
        
          between Marrowbone and Elkhorn City, KY, readying for
        
        
          the assault up through the Breaks of the Big Sandy.
        
        
          "The scene was photographed on a small diorama built by Brian
        
        
          Bennett to generically represent scenes frommy planned basement-
        
        
          size layout depicting CSX's ex-Clinchfield operations on the Kingsport
        
        
          Sub. between Shelby, KY and Kingsport, TN in the early 90's.  The GP40
        
        
          is a heavily-modified and custom-painted Atlas model and the B30-7 is
        
        
          also a highly-detailed and improved Atlas engine. 
        
        
          
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          MRH-Jun 2013