This United Air Lines enamel sign features a graphic map of the United States indicating major coast-to-coast routes titled 'Mainliners.' The sign is square with four mounting holes, two at the top and two at the bottom corners.
This United Air Lines enamel sign features a graphic map of the United States indicating major coast-to-coast routes titled 'Mainliners.' The sign is square with four mounting holes, two at the top and two at the bottom corners.
