I am posting this to Real trains, as this is a question about history, but also dips into 3 rail toy trains and current scale models, so my apologies if I am in the wrong forum.
As a child, (think 1989 ish) when we set up the Christmas tree my dad would pull out my Uncle’s Lionel trains, a late 1950/earl 1960’s mix of a FM train master, and a 2-4-2,and set up a loop of track, among the cars there was always a gondola with Red “things” that road inside it. They were hollow and had no bottoms. This was my early introduction to what I would latter learn were LCL containers.
I always assumed these were a toy invented to fit in the gondola’s, just a little more play value. I had never seen these containers in real life nor had I every come across them when I got back into model railroading about 10 years ago.
A few weeks ago I found myself in my favorite train store in Michigan, Great Lakes Hobby and Train, and wam there is a MTH purple box, with a Western Maryland gondola with LCL containers. So I guess this means they are real. Some googling latter, with new gondola in hand, I see they are a real thing, but I am not finding out too much more.
Can anyone share with me a source of information about these things,
what were they used for?
When were they used and
why are they not used any more?