My all time favorite locomotive is the Mason Bogie, particularly as realized on the Denver, South Park & Pacific Railroad (see also here).
Particularly number 8 (later becoming number 44):


I built my model in 1:20.3 scale, which is used to accurately model 3 foot narrow gauge railroads on the original LGB track gauge of 45 mm, following the Masterclass being taught by David Fletcher.

Here's the result:


Probably the only way I'll get to run a Bogie!


Decals by Stan Cedarleaf.

Woodworking son Drew made me a carrier following an article from myLargeScale.com.


Because my locomotive is battery powered, I can run it right into the carrier - brilliant!

Some detail shots of the backhead (with labels on the first):


And a "night" shot:


A couple of movies with sound:




Friend Gail Briggs did a painting of my locomotive and cars on the Palisades:


See my construction log.

And I built a few freight cars for the locomotive to haul. These came from Hartford Products kits.