Continental Tire North America is marking the centennial anniversary of its truck and automotive market brand General Tire with a themed black & white banner borrowing from a vintage magazine ad’s colored drawing. With the backdrop of the Hoover Dam, whose early 1930s construction saw placement of 3 million yards, the campaign centerpiece is a reminder of the load limits ready mixed producers faced in the pre-war era—tires, wheels, engines, chassis, drums and all.