BO
| Baltimore & Ohio | 3 |
CNSZ
| CNSZ | 1 |
CRZ
| Conrail Trailer | 7 |
ICSZ
| Transamerica Leasing Incorporated (Union Pacific) | 1 |
MP
| Missouri Pacific | 1 |
MPZ
| Missouri Pacific | 1 |
NKP
| Nickel Plate | 1 |
NSZ
| Norfolk Southern Railway Company | 1 |
PCTZ
| PCTZ | 1 |
RCRZ
| RCRZ | 1 |
SBD
| Seaboard System | 2 |
SOU
| Southern | 2 |
SOUZ
| Norfolk Southern Railway Company | 3 |
TJGX
| TJGX | 1 |
TPZ
| Union Pacific Railroad Co | 1 |
TVZ
| TVZ | 1 |
UPZ
| Union Pacific Railroad Company | 1 |