The American Flyer Prewar Steam Whistling Billboard is a metal train model in 1:48 scale. It is an AC-powered, analog-controlled locomotive featuring a green exterior with a whistling billboard. The train is pre-built and ready to use. The era of the train is prewar, and it was manufactured in the United States. The gauge of the train is either S or O. The functionality of the exterior whistling billboard has not been tested.