Original 1930 Ford Tri-Motor Airplane Ad Proof. This Ad Proof would have been sent to Ford by the Magazines or Papers that ran this Ad. It touts the Ford Tri-Motor Planes Commercial and Industrial uses. It is in good condition with minor wear and soiling [see photos]. It is printed on slick paper and is creased across middle from being folded in half. Very rare piece that will make a cool framed display item.