Upgrade your 1940 Ford closed car with an authentic wiper knob that promises to restore the original functionality and look of your vehicle. Crafted by Dennis Carpenter, this knob is designed to precisely fit the wiper switch placement, ensuring a seamless integration with your car's interior. The item, bearing the OEM part number 91A-17513-A, is a testament to vintage automotive excellence, solidifying its value for collectors and enthusiasts alike. This knob is not just a replacement part but a piece that adds to the historical charm of your classic Ford.