BN
| Burlington Northern | 10 |
CANX
| CANAC International | 1 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 1 |
FGWX
| Federal Grain Inspection Service (USDA) (Scale Test Cars) | 1 |
IC
| Illinois Central | 1 |
MNWX
| Minnesota Dept. of Public Service Weights and Measures Divis | 2 |
UP
| Union Pacific Railroad Company | 9 |
WUTX
| WUTX | 2 |