AA
| Ann Arbor | 1 |
AC
| Algoma Central | 1 |
ALY
| Allegheny and Eastern Railroad Incorpora | 1 |
ARA
| Arcade and Attica Railroad Corporation | 1 |
ARR
| Alaska Railroad | 4 |
ATSF
| Atchison Topeka & Santa Fe | 6 |
BAR
| Bangor & Aroostook | 7 |
BCGA
| BCGA | 1 |
BCH
| Southern Railway of British Columbia Limited | 1 |
BCOL
| Canadian National Railways | 3 |
BM
| Boston & Maine | 12 |
BML
| Belfast & Mooshead Lake | 4 |
BN
| Burlington Northern | 73 |
BNSF
| BNSF Railway | 32 |
CBC
| Carbon County Railway | 1 |
CBNS
| Cape Breton & Central Nova Scotia Ry | 1 |
CBQ
| Chicago Burlington & Quincy | 1 |
CC
| Chicago Central & Pacific | 11 |
CCR
| Corinth & Counce | 1 |
CCRR
| Claremont Concord | 1 |
CCWX
| Coastal Chem Incorporated | 1 |
CEMR
| Central Manitoba Railway Incorporated | 1 |
CFMG
| Chemin De Fer De La Matapedia Et Du Golf | 1 |
CGW
| Chicago Great Western | 4 |
CH
| Calumet & Hecla | 2 |
CLCO
| Claremont & Concord | 1 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CN
| Canadian National Railways | 38 |
CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 2 |
CNW
| Chicago & Northwestern | 33 |
CNWX
| Canadian Wheat Board | 1 |
CNY
| CNY | 1 |
CO
| Chesapeake & Ohio | 7 |
CP
| Canadian Pacific Railway | 49 |
CR
| Conrail | 44 |
CRHA
| Candian Railroad Historical Assocation | 1 |
CRIP
| Chicago Rock Island & Pacific | 8 |
CS
| Colorado & Southern | 3 |
CSP
| Camas Prairie RailNet Incorporated | 1 |
CSRR
| Conway Scenic | 1 |
CSRX
| Conway Scenic Railroad | 1 |
CSX
| CSX Railroad | 1 |
CTA
| Chicago Transit Authority | 5 |
CTS
| Cumbres & Toltec Scenic | 2 |
DH
| Delaware & Hudson | 3 |
DL
| Delaware-Lackawanna Railroad Company | 2 |
DLW
| Delaware Lackawanna & Western | 1 |
DM
| Detroit & Mackinac | 3 |
DME
| Dakota, Minnesota and Eastern | 7 |
DMIR
| Duluth Missabe & Iron Range | 1 |
DMVW
| Dakota Missouri Valley and Western Railr | 4 |
DRGW
| Denver & Rio Grande Western | 7 |
EL
| Erie Lackawanna | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 5 |
ERIE
| Erie Railroad | 1 |
ERR
| Edaville Railroad Corp | 1 |
FGLK
| Finger Lakes Railway | 1 |
FRVR
| Fox River Valley Railroad | 1 |
FSCU
| Florens Container Services Co. Ltd. | 1 |
GCRY
| Grand Canyon Railway | 1 |
GEXR
| Goderich & Exeter | 3 |
GMRC
| Green Mountain RR | 3 |
GN
| Great Northern | 12 |
GNW
| GNW | 1 |
GRS
| GRS | 1 |
GT
| GT | 2 |
GTW
| Grand Trunk Western | 4 |
GV
| GV | 1 |
HCR
| HCR | 1 |
HCRY
| Huron Central Railway | 1 |
HVSR
| Hocking Valley Scenic | 1 |
IAIS
| Iowa Interstate | 2 |
IANR
| Iowa Northern Ry | 2 |
IATR
| Iowa Traction Railroad Company | 3 |
IC
| Illinois Central | 9 |
ICE
| Iowa Chicago and Eastern | 4 |
ICX
| INDUSTRIAL CHEMICALS TRANSIT CO | 1 |
IMRL
| I&M Rail Link | 1 |
IN
| Indiana Northeastern | 1 |
INPR
| Idaho Northern and Pacific Railroad | 2 |
KBR
| KBR | 1 |
KBS
| KBS | 1 |
KBSR
| Kankakee Beaverville and Southern Railroad Company | 2 |
KCS
| Kansas City Southern | 1 |
KNOR
| Klamath Northern Railway | 1 |
KYLE
| Kyle Railroad | 2 |
LAL
| Livonia Avon & Lakeville | 1 |
LASB
| Lackawaxen and Stourbridge | 1 |
LHR
| Lehigh & Hudson River | 1 |
LI
| Long Island Rail Road Company | 4 |
LN
| Louisville & Nashville | 2 |
LNE
| Lehigh and New England Ry | 2 |
LV
| Lehigh Valley | 2 |
LVRC
| Lamoille Valley | 1 |
MBTA
| Massachusetts Bay Transit Authority | 6 |
MBTX
| MBTX | 1 |
ME
| Morristown & Erie Railroad | 2 |
MEC
| Maine Central | 19 |
MHWA
| Mohawk Adirondack and Northern Railroad | 1 |
MICO
| MICO | 1 |
MILW
| Milwaukee Road | 38 |
MILX
| General Electric Rail Services | 1 |
MNCW
| Metro-North Commuter Railroad | 1 |
MNN
| Minnesota Northern Railroad Incorporated | 1 |
MNNR
| Minnesota Commercial | 1 |
MNS
| Minneapolis Northfield & Southern | 1 |
MNVA
| Minnesota Valley | 1 |
MP
| Missouri Pacific | 4 |
MPX
| COLUMBIAN CARBON CO., MAGNETIC PIGMENT DIV. | 1 |
MQT
| Marquette Rail | 1 |
MR
| McCloud Railway Company | 1 |
MSTL
| Minneapolis & St Louis | 2 |
MW
| MW | 1 |
MWS
| MWS | 2 |
NAUG
| Naugatuck Railroad Company | 2 |
NBEC
| New Brunswick East Coast Railway Company | 1 |
NCRC
| Nebraska Central | 1 |
NECR
| New England Central | 1 |
NF
| NF | 1 |
NHN
| New Hampshire Northcoast Corporation | 1 |
NKP
| Nickel Plate | 1 |
NN
| Northern Nevada Railroad Corporation | 3 |
NP
| Northern Pacific | 7 |
NPR
| Northern Plains Railroad Incorporated | 1 |
NS
| Norfolk Southern | 1 |
NSRM
| NSRM | 1 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 6 |
NYSW
| New York Susquehanna & Western | 8 |
OCE
| Oregon California & Eastern | 2 |
OCRR
| Ottawa Central Railway | 1 |
OMID
| Ontario Midland Railroad Corporation | 1 |
ONCT
| Ontario Central Railroad Corporation | 1 |
ONT
| Ontario Northland Railway | 2 |
OSL
| OSL | 2 |
OVR
| Otter Valley Railroad | 1 |
PAR
| PAR | 3 |
PC
| Penn Central | 5 |
PGE
| Pacific Great Eastern | 3 |
PKP
| Polish Railways | 12 |
PRCo
| Pittsburgh Railways | 1 |
PRR
| Pennsylvania Railroad | 3 |
PTM
| Portland Terminal | 1 |
QC
| Quebec Central | 1 |
QGRY
| Quebec Gatineau Railway Incorporated | 1 |
RCPE
| Rapid City Pierre & Eastern Railroad | 2 |
RDG
| Reading Railroad | 1 |
RI
| RI | 4 |
RLK
| RailAmerica Ottawa Valley Railway | 2 |
ROTA
| ROTA | 1 |
RRVW
| Red River Valley and Western Railroad | 3 |
SBRR
| Stourbridge Railroad Company | 1 |
SHRR
| SHRR | 2 |
SJL
| St Johnsbury & Lamoille County RR | 1 |
SLR
| St Lawrence & Atlantic | 2 |
SLRX
| SLRX | 1 |
SNOW
| SNOW | 1 |
SOO
| Soo Line | 20 |
SP
| Southern Pacific | 15 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 2 |
SPMW
| Southern Pacific Maintenance of Way | 20 |
SRC
| Strasburg Railroad | 1 |
SSWM
| SSWM | 3 |
ST
| Springfield Terminal | 2 |
SWRU
| Swift Intermodal | 1 |
TDRX
| TDRX | 1 |
THB
| Toronto Hamilton & Buffalo | 1 |
TOV
| TOV | 1 |
TPW
| Toledo Peoria & Western | 3 |
TSB
| TSB | 1 |
TSBY
| Great Lakes Central Railroad | 2 |
TSWR
| Toppenish, Simcoe & Western Railroad | 1 |
UP
| Union Pacific Railroad Company | 33 |
USA
| USA | 1 |
USAX
| United States Army | 1 |
UTAH
| Utah Railway | 1 |
VALE
| Valley Railroad Company | 1 |
VB
| Van Buren Bridge Company (Bangor & Aroostook) | 5 |
VNOR
| VNOR | 1 |
VTR
| Vermont Railway | 3 |
VTRX
| VTRX | 1 |
W
| W | 1 |
WC
| Wisconsin Central | 6 |
WNYP
| Western New York and Pennsylvania | 4 |
WPRR
| Willamette and Pacific | 1 |
WPYR
| White Pass & Yukon Route | 1 |
WSOR
| Wisconsin & Southern | 1 |
WSOX
| First Union Rail | 1 |
WTCX
| Weyerhauser | 1 |