This is a USA Trains American Series Steel box car in the 1:24 scale ratio and is USA Trains stock number R1910 Santa Fe "Super Chief California" car. I see it has the steel wheel upgrade, although the hand rails threw me way off. The hand rails which is the ladder part on the right hand side in the picture. Thos side strips that run up and down behind the rails are suppose to be on the front and rear on the car and not installed on the sides. The hand rails on the sides get installed directly on the car with no side strips. Hopefull this won't de-value the car much in your auction