Now that I think about it, there was someone who had a video out. Which had views from the steam engine cab, showing them pushing one of these. Perhaps this very car? Heading up the Creede Branch, snow flying. Boxcab E50
Creede Branch, last I checked, was standard-gauge. If it was a flanger, it would have been one of these: I bagged this guy in Monte Vista, CO, just east of the Creede Branch.