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United Kingdom
| IOM | Isle of Man |
| TFL | Transport for London |
| UK | UK Mainline |
| UK70 | UK mainline 1970-2000 |
| UKCS | UK Coaching Stock |
| UKDPT | UK Departmental |
| UKIN | UK Industrials |
| UKMISC | UK Misc. |
| UKNG | UK Narrow Gauge |
| UKP | UK Preserved |
| UKTR | UK Trams and Metro |
| UKW | UK Wagons |
UK Preservation Sites |
Austria
Belgium
Canada
| CA-P | Passenger Operators |
| CATR | Canada Trams and Metro |
| CN | Canadian National |
| CP | Canadian Pacific |
Czech Republic
| CZ | Czech Railways |
| CZCS | Czech Coaching Stock |
| CZDPT | Czech Departmental Stock |
| CZTR | Czech Trams |
France
| FR | France |
| FRM | France Metros |
| FRTR | France Trams |
Germany
| DE | German Mainline |
| DECS | German Coaching Stock |
| DEM | Germany Metro |
| DENG | German Narrow Gauge |
| DETR | Germany Trams |
Hungary
| BHÉV | Budapesti Helyiérdeku Vasút |
| HU | Hungary |
| HUCS | Hungary Coaching Stock |
| HUM | Hungary Metro |
| HUNG | Hungary Narrow Gauge |
| HUTR | Hungary Trams |
International
| ES | Eurostar |
| ET | Eurotunnel |
| GYSEV | GYSEV |
| TLS | Thalys |
Ireland
| IE | Ireland |
Italy
| IT | Italy |
| ITCS | Italy Coaching Stock |
| ITM | Italian Metro |
| ITTR | Italian Trams |
Luxembourg
| CFL | Chemin de Fer Luxembourg |
| LUTR | Luxembourg Tram |
Netherlands
Philippines
Poland
| PO | Poland Mainline |
| POCS | Poland Coaching Stock |
| PONG | Polish Narrow Gauge |
| POTR | Poland Trams |
Portugal
| PT | Portugal |
| PTTR | Portugal Trams and Metros |
Slovakia
Spain
| SP | Spain |
| SPM | Spain Metro |
| SPTR | Spain Trams |
Switzerland
| BER | Canton Berne |
| BLS | BLS Lötschbergbahn |
| CHP | Swiss Preserved Rolling Stock |
| CHTR | Swiss Trams and Metro |
| CHTRP | Swiss Preserved Trams |
| JU | Jura, Solothurn |
| RhB | Rhätische Bahn |
| SBB | SBB |
| SG | St Gallen and Appenzell |
| TI | Ticino |
| VD | Vaud, Fribourg,Geneva |
| VS | Valais |
| ZB | Zentralbahn |
| ZH | Zürich, Aargau & Luzern |
Thailand
| TH | Thailand |
Turkey
| TK | Turkey |
| TKM | Turkey Metro |
| TKTR | Turkey Trams |
United States
| BNSF | Burlington Northern Santa Fe |
| CSX | CSX Transportation |
| MET | Metra |
| UP | Union Pacific |