Havoline Gasoline porcelain sign features a striking design with bold colors and is made of porcelain. It is perfect for display in a garage, shop, or man cave. The sign measures 10″ x 6″ and is in excellent condition, with no major chips or cracks. Whether you are displaying this sign 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 Havoline porcelain sign. Bright colors w/ porcelain on both sides.