Here is the steam generator car that Bob is referring to:

I may have posted this photo before, but if so the thread is long gone. My brother Pete did a major kitbash to produce this car, which was used on the Cascade Tunnel electrified division for the
Empire Builder and
Western Star (and maybe the
Fast Mail?). I consider it the crown jewel of my 1949 Empire Builder, which can be seen here in this 2013 video, also posted here before:
https://www.youtube.com/watch?v=q6UArvAZEOkJim