Vintage Hudson Automobiles Porcelain Sign. This vintage porcelain sign featuring the Hudson Automobiles advertising sign. The sign boasts a beautiful graphic of the large lettering in the center, with excellent porcelain and blue & red color. The sign is in great condition and would make a wonderful addition to any collection or display. This will make the best piece of wall decor for your man-cave, collection, shop, or bar. Vintage Hudson Parts & Service porcelain sign. Vibrant colors and excellent porcelain.