units were a common sight on the D&RGW, RGS and most other narrow gauge railroads. This model is available with either rear or center cupola. (Riding option not offered on the center cupola version).
The cabooses of D&RGW and WP were very similar, but not identical. Haskell & Barker built cars for both roads in 1909 (D&RG 0950-0959) and 1910 (WP 20007-20056, renumbered to 731-779). I know that the WP cars had steel center sills and truss rods, but I haven't seen a photo of one of the Grande's cars or a diagram sheet for this series, so I can't say for sure that they were identical. The Rio Grande design was then modified and all of their subsequent cars had a substantial steel underframe, both those ordered from H&B and those built in their own shops. The WP built several groups of steel underframe cars following the original design, but they also had truss rods, thus a major difference that is readily visible.