Vintage BMW International Automobiles Porcelain Sign. This vintage porcelain sign featuring BMW automobiles is a must-have for any automotive enthusiast. The crisp blue and black color scheme, make it a perfect addition to any garage or workshop. Made in the United States, t. His sign will enhance your mancave, collection, shop, or garage. It is your chance to own a piece of BMW advertising. BMW Blue and Black Graphic. 11 3/4 inches in diameter. Vibrant colors and excellent porcelain.