AA
| Ann Arbor | 2 |
ABOX
| TTX Company | 1 |
ACL
| Atlantic Coast Line | 3 |
ACY
| Akron, Canton & Youngstown | 1 |
ADN
| Ashley Drew & Northern | 6 |
AHW
| Fox Valley and Western Limited | 1 |
ALAB
| Alabama Railroad | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 2 |
AMC
| Arkansas Louisiana and Mississippi Railr | 1 |
AMR
| Arcata & Mad River | 2 |
AMTK
| Amtrak | 1 |
AN
| Apalachicola Northern | 3 |
AOK
| Arkansas-Oklahoma Railroad | 3 |
ARCX
| Arizona Rail Car Incorporated | 2 |
ARR
| Alaska Railroad | 2 |
ATSF
| Atchison Topeka & Santa Fe | 41 |
ATW
| Atlantic and Western | 4 |
AZER
| Arizona Eastern Railway Company | 3 |
BAR
| Bangor & Aroostook | 1 |
BCH
| Southern Railway of British Columbia Limited | 1 |
BCIT
| Canadian National Railways | 2 |
BCOL
| Canadian National Railways | 2 |
BKTY
| Union Pacific Railroad Company | 3 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 4 |
BNSF
| BNSF Railway | 9 |
BO
| Baltimore & Ohio | 5 |
CAD
| Cadiz Railroad | 2 |
CAGY
| Columbus & Greenville Railway | 5 |
CBQ
| Chicago Burlington & Quincy | 12 |
CCR
| Corinth & Counce | 1 |
CEI
| Chicago & Eastern Illinois | 2 |
CMQ
| CENTRAL MAINE & QUEBEC RAILWAY | 2 |
CN
| Canadian National Railways | 5 |
CNW
| Chicago & Northwestern | 7 |
CO
| Chesapeake & Ohio | 3 |
COER
| Crab Orchard & Egyptian | 1 |
COP
| City of Prineville Railway | 1 |
CP
| Canadian Pacific Railway | 7 |
CPLT
| CAMINO, PLACERVILLE & LAKE TAHOE RAILROAD CO. | 1 |
CR
| Conrail | 4 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 6 |
DH
| Delaware & Hudson | 2 |
DRGW
| Denver & Rio Grande Western | 8 |
DWC
| Canadian National Railways | 3 |
EEC
| East Erie Commercial Railroad | 2 |
EFCX
| Evergreen Freight Car Company | 3 |
EJE
| Elgin Joliet and Eastern | 1 |
EL
| Erie Lackawanna | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
EN
| Esquimalt & Nanaimo | 1 |
FBOX
| TTX Company | 1 |
FCRD
| First Coast Railway | 1 |
FSRR
| FerroSur | 2 |
FXE
| Ferromex | 3 |
GBW
| Green Bay & Western | 3 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 9 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTRA
| Golden Triangle Railroad | 2 |
GTW
| Grand Trunk Western | 1 |
GWR
| Great Western Railway Company | 1 |
IANR
| Iowa Northern Ry | 7 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 1 |
IC
| Illinois Central | 7 |
ICG
| Illinois Central Gulf | 2 |
ITC
| Illinois Terminal Railroad | 1 |
KCS
| Kansas City Southern | 3 |
LAPX
| Linde Air Products Co. | 2 |
LCRC
| Lenawee County Railroad | 1 |
LN
| Louisville & Nashville | 7 |
LOAM
| Lousiana Midland | 1 |
LPN
| Longview, Portland & Northern | 2 |
LSI
| Lake Superior and Ishpeming Railroad | 1 |
LUNX
| General Electric Rail Services | 3 |
LV
| Lehigh Valley | 1 |
LVRC
| Lamoille Valley | 2 |
MB
| Meridian & Bigbee | 3 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MEC
| Maine Central | 9 |
MI
| Missouri & Illinois | 1 |
MILW
| Milwaukee Road | 19 |
MISS
| Mississippian Railway Cooperative Incorporated | 2 |
MKT
| Missouri-Kansas-Texas | 11 |
MNS
| Minneapolis Northfield & Southern | 4 |
MON
| Monon Route | 2 |
MP
| Missouri Pacific | 8 |
MPA
| Maryland and Pennsylvania Railroad | 2 |
MR
| McCloud Railway Company | 1 |
MRS
| Manufacturers Railway | 7 |
MSE
| Mississippi Export Railroad Company | 2 |
MTR
| Montour RR | 1 |
MTW
| Marinette Tomahawk & Western | 2 |
NADX
| General Electric Rail Services | 2 |
NDEM
| NDEM | 10 |
NFD
| Norfolk, Franklin and Danville | 2 |
NHIR
| New Hope & Ivyland | 3 |
NIRX
| General Electric Rail Services | 4 |
NJII
| New Jersey, Indiana and Illinois | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
NKP
| Nickel Plate | 3 |
NOKL
| Northwestern Oklahoma | 3 |
NP
| Northern Pacific | 10 |
NS
| Norfolk Southern | 4 |
NSRC
| North Stratford RR | 2 |
NW
| Norfolk & Western | 7 |
NYC
| New York Central | 9 |
OKKT
| Union Pacific Railroad Company | 2 |
ONW
| Oregon & Northwestern | 1 |
PC
| Penn Central | 9 |
PGE
| Pacific Great Eastern | 1 |
PHD
| Port Huron and Detroit Railroad Company | 1 |
PICK
| Pickens Railway | 1 |
PLE
| Pittsburgh & Lake Erie | 2 |
PLYX
| US Plywood | 2 |
PRR
| Pennsylvania Railroad | 5 |
QC
| Quebec Central | 1 |
RBBQ
| Chicago, Burlington and Quincy Reefers | 2 |
RBCS
| RBCS | 1 |
RBOX
| Railbox Company | 13 |
RDG
| Reading Railroad | 8 |
RI
| RI | 9 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 1 |
ROCK
| Rock Island | 4 |
SAL
| Seaboard Air Line | 7 |
SBC
| Ferrocarril Sonora Baja California | 2 |
SCFX
| SCFX | 1 |
SCL
| Seaboard Coast Line | 4 |
SCOP
| SCOP | 1 |
SDAE
| San Diego & Arizona Eastern | 2 |
SERA
| Sierra Northern Railway | 3 |
SFRB
| Santa Fe | 6 |
SLSF
| Saint Louis-San Francisco | 7 |
SN
| Sacramento Northern | 1 |
SOO
| Soo Line | 7 |
SOU
| Southern | 25 |
SP
| Southern Pacific | 25 |
SPS
| Spokane Portland & Seattle | 3 |
SRN
| Sabine River & Northern | 4 |
SRY
| Southern Railway of British Columbia Lim | 1 |
SSDK
| Savannah State Docks Railroad Company | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 7 |
STE
| Stockton Terminal and Eastern RR | 2 |
STMA
| St. Maries River Railroad Company | 1 |
TBOX
| TTX Company | 9 |
TM
| Texas-Mexican | 4 |
TNR
| Kansas City Southern Railway Company | 1 |
TOBX
| TTX Company - Box Cars | 1 |
TP
| Texas & Pacific | 4 |
TS
| Texas Southern | 1 |
TSE
| Texas South-Eastern Railroad Company | 1 |
UO
| Union Railway of Oregon | 2 |
UP
| Union Pacific Railroad Company | 36 |
USLX
| General Electric Rail Services | 9 |
VC
| Virginia Central Railway | 2 |
VNOR
| VNOR | 2 |
VTR
| Vermont Railway | 2 |
WAB
| Wabash | 3 |
WC
| Wisconsin Central | 2 |
WCRC
| Washington Central | 1 |
WCTR
| WCTU Company White City Terminal Railway | 2 |
WE
| Wheeling & Lake Erie | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WM
| Western Maryland | 2 |
WOV
| Warren & Ouachita Valley | 2 |
WP
| Western Pacific | 18 |
WRWK
| Providence & Worchester Railroad | 5 |
WVRC
| WABASH VALLEY RAILROAD CO. | 1 |
YW
| Yreka Western Railroad Company | 4 |