1931 Chevrolet for Economical Transportation Sales Mailer Folder. Modern Transportation demands Economy. Because Chevrolet trucks provide all the economies required for profitable hauling, they are today, more than ever, in demand for all kinds of work. Points out quality features that contribute to Chevrolet Truck economy. Fully opened promotes how Chevy trucks have proved their economy in every type of business and displaying many types of trucks, from open cab pick-up to a panel truck. Condition: 1931 written upper midlde of mailer. Looks as though it has faded or been erased somewhat. Some discoloring. Spot on back cover. See pics.