Prewar and Postwar O or S Gauge American Flyer and Ringling Bros billboards four with whistle and one has the diesel horn. Included are three control buttons, one marked for Diesel Horn. One billboard is missing pieces. Other billboards look C6.

Prewar and Postwar O or S Gauge American Flyer and Ringling Bros billboards four with whistle and one has the diesel horn. Included are three control buttons, one marked for Diesel Horn. One billboard is missing pieces. Other billboards look C6.