Model Train Forum banner
4 rail track
1-1 of 1 Results
  1. O Scale
    I just bought 100+ pieces of AF O gauge track, most of which is 4 rail. I searched the Internet for information and didn't find much. Does anyone know what the 4th rail is for? Or which trains used it? It may have been for a whistle.
1-1 of 1 Results
Top