I was searching Wikipedia, under Mason-Bogie, and then found a LOT of photos that
could be pulled up for those, including one not a Mason Bogie, but what looks like
a large scale outdoor model (identified as in New Jersey) of an inspection engine
lettered for the Denver and Rio Grande and also named "Columbus". The trackwork
and figures in the loco are very realistic. Hard to tell it was a model. It was a 19th
century loco, but I have never before seen a Rio Grande inspection engine and wonder if the prototype existed? A LOT of brass models of Mason Bogies are shown, too....many HO, didn't see any O scale ones in a quick skim....Mason made standard gauge ones such as the Hecla and Torch Lake one identified as now at Greenfield Village. Kitbashing one in three rail does not look difficult, except getting the
drivers and cylinder assy. to turn as a truck. For sure neither that nor an inspection
engine or the critter I want, which is very similar, with more coach space, as that
D&RGW model found with Wikipedia on the net, have been done commercially in three rail! Now the creative people on here.....may have cranked some out..
