D&RGW 5931-5954
The D&RGW purchased two groups of twelve GP9's each, but did not number them in a consecutive manner. Instead, the engines are arranged in groups of four road numbers each ending in the digits 1 through 4. The third digit on each group of four units varied from 0 through 5. It is not known why they did this, but suffice it to say that they did it like this for some reason. I would love to know the reason. If you know, please do share and I will update this space.
D&RGW 5931-5934 - 7/1956 - frame numbers: 5469-1 thru 5469-4
| D&RGW 5931 | D&RGW 5932 | D&RGW 5933 | D&RGW 5934 |
D&RGW 5941-5944 - 7/1956 - frame numbers: 5469-5 thru 5469-8
| D&RGW 5941 | D&RGW 5942 | D&RGW 5943 | D&RGW 5944 |
D&RGW 5951-5954 - 7/1956 - frame numbers: 5469-9 thru 5469-12
| D&RGW 5951 | D&RGW 5952 | D&RGW 5953 | D&RGW 5954 |