Original World War 2 business industry trade magazine vintage ad for DU PONT DE NEMOURS AND COMPANY, INC. of Wilmington, DE. Cellophane Division. Will Your Product be On This Strato-Train? When the war is won, thousands of long range bombers and troop transports, and trains of invasion gliders will be available for cargo use. Tomorrow they may carry air freight through the stratosphere at great speed. Right now we ere gathering invaluable experience in packaging under the rigorous requirements of war use. Old 1943 WW2 era propaganda magazine advertisement.