What we have here is a picture of a freight car that I have not been able to identify. Who built it? When was it offered? And, in the real world, what kind of loads would we expect to see hauled by it? It has UP markings and road number 50000. One truck on each end has MTH cast into the underside. No other indication that MTH built this car. It's 19.5 inches long, coupler to coupler.