As for the late steam era, the WP acquired another series of ballast cars
in
the 50's (too late for my interests) -- also rather short. I believe one
of
these cars is at the museum in Portola, CA. where, like everything else there, one can crawl under, over, and into this car to your heart's
content. Perhaps so...but one could easily die of hunger while traveling there...given that the owners of that neat restaurant near Quincy have chosen to camouflage their building to either the appearance of a service station, post office or small zoo.