Thanks for the link below on the post titled "A site with Lionel train O gauge listing of the cars with descriptions? " I have been able totrack down all my model train cars and accessories except one. Does anyone know the number, name or a link too information about the car. It carried two orange plastic bride sides similar to the sides of 314 Girder Bridge 1945 - 1950. I believe I got the car new between 1959 to 1961 it was very long I think had a gray flat bed that was heavy steel. It had four trucks two at each end. I think two axles per truck or maybe it was three. So it had a minimum of 16 wheels. The bridge sections were held on by a wrapped rubber band (pony tale hair tie).