Original World War 2 military industry trade magazine vintage ad for KOPPERS COMPANY of Pittsburgh, PA. Plastics Begets Its Newest Child, Synthetic Rubber.  Under the impelling influence of war, the full meaning of plastics is bursting upon the public in all its dazzling ramifications. Making airplane catapults, anti aircraft gun mounts, airplane, submarine and automotive piston rings, and more.  Art by Bingham. Old 1943 WW2 era propaganda magazine advertisement. There is a very light stamp on the bottom right corner.  The ad would display beautifully matted and framed.