Ray is right: very similar to Athearn but with some style variations. They offered several styles of boxcars and reefers with a lower roof line than Athearn's versions, making them suitable for representing some of the cars from the '30's, '40's, and '50's. Like Athearn, the roofwalks, stirrup steps and door tracks are a bit clunky but these details can be easily changed. They made a decent version of Pennsy's X-29 boxcar: I have several of these on which I've updated the clunky details, and then painted and relettered and they are indistinguishable from the X-29 offered by Red Caboose. If you model in the steam or early diesel era, the varied rooflines really help to set the timeframe. I'm modelling the '30's and one of my favourites is the plug door boxcar: by shaving off the door hardware and extending the door track to the left, you can make a very credible door-and-a-half automobile boxcar using cut-down Athearn doors. They made several styles of wood and steel boxcars, reefers, stockcars and hoppers. There were also work cars (bunk, tool, rail and tie car and even a small crane. The original Train Miniature became Train Miniature of Illinois and then was eventually taken over by Walthers, who, as far as I know, still offer them.
Wayne