I have two MT yellow boxcars with different road numbers. Two of my favorite cars because of the bright colors, I think. I may have some others on the layout. I like to have a good cross section of western roads on the layout.
Flash, I have two, maybe three yellow Micro-Trains Frisco boxcars. I will have to check road numbers, I may even have two of one of them. I recall that I paid a lot for one of them on eBay. Charlie
I think they might have been/be pretty valuable, but I doubt mine are. I have MT (old number) 32060. Road numbers are 6244 and 12052. Big number difference, so might be some Frisco renumbering there.
In the freight department I don't have very much. Just a few gondolas and maybe a hopper. I guess I am just a passenger kind of guy.