This model won the "S Scale Rolling Stock of the Year" in 1999, as voted on by the readers of Model Railroader magazine.
The model was based on the Chesapeake & Ohio, later Chessie C-25, caboose, as built in 1968 by the International Car Co. out of Kenton, Ohio (references: web site; Trains magazine Nov. 1968).
The marker lights use light pipes from the rear bulb to illuminate the lenses. All runs were the same.
The original document that accompanied the model is now available as a PDF file. This covers how to gain access to the lightbulb, the prototype background, and installing couplers.