Thomas Merchandise on Twitter: "Before there was 9v or power functions, there were Lego 12v trains! Powered by a middle rail similar to Lionel, Lego made automatic points, signals, uncoupling tracks, and
![LEGO MOC Lego passenger train power car by Mario´s Klemmbaustein Eisenbahn | Rebrickable - Build with LEGO LEGO MOC Lego passenger train power car by Mario´s Klemmbaustein Eisenbahn | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/mocs/moc-111765.jpg/1000x800.jpg)
LEGO MOC Lego passenger train power car by Mario´s Klemmbaustein Eisenbahn | Rebrickable - Build with LEGO
![LEGO MOC BR Class 66 Diesel Locomotive Train In Freightliner Yellow & Green Livery by Andy Ps Bricks | Rebrickable - Build with LEGO LEGO MOC BR Class 66 Diesel Locomotive Train In Freightliner Yellow & Green Livery by Andy Ps Bricks | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/mocs/moc-138538.jpg/1000x800.jpg)
LEGO MOC BR Class 66 Diesel Locomotive Train In Freightliner Yellow & Green Livery by Andy Ps Bricks | Rebrickable - Build with LEGO
![LEGO MOC Lighting upgrade for Lego Cargo Train (60198) by JanBassett | Rebrickable - Build with LEGO LEGO MOC Lighting upgrade for Lego Cargo Train (60198) by JanBassett | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/mocs/moc-21750.jpg/1000x800.jpg)
LEGO MOC Lighting upgrade for Lego Cargo Train (60198) by JanBassett | Rebrickable - Build with LEGO
![LEGO MOC Cargo Train 60197 with Colour Sensor update and Powered Up App control panel 88007 by osna_wolle | Rebrickable - Build with LEGO LEGO MOC Cargo Train 60197 with Colour Sensor update and Powered Up App control panel 88007 by osna_wolle | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/cache/pdfpreview/MOC-110930/129941-2.png?1652123093.5024836)