Indian Motorcycles porcelain sign is made of porcelain and measures 12″ by 9″. This Indian Motor Bike sign is perfect for displaying on walls or shelves as part of your collection in your man cave, shop, bar, or garage, or giving it as a gift, you can also browse my other auctions for more vintage gas, oil, aviation, automobile, motorcycle, and hunting signs. Vintage Indian Motorcycles porcelain sign. Bright colors w/ porcelain on both sides.