This was an American Transcontinental Diesel locomotive, based on a Union Pacific F7 US Diesel Electric, mounted on two bogies. The livery was silver with 3 red stripes of lining on the sides. These also came in yellow or green, with a grey roof.
The front bogie had a cow catcher cast in. The rear bogie consisted of either a tow pin or a cast towing slot. Each bogie had two pairs of wheels.
Detail on the locomotive included exhaust funnel, extractor fans, steps, hand rails, ventilation grills, oil boxes and battery casing.