40 hopper cars on the wall! 40 hopper cars!

[RRManiac]

I had actually completely forgotten about this thread. No real progress yet... Well, actually... None at all... I have been looking for good trucks, couplers, and such, and the hoppers themselves are of a highly unusual design.

I'm looking for a couple of pictures to show you, but I can't really find much of anything that shows the ends or inside.