Socony Gasoline porcelain sign features the iconic Socony Gasoline with the shield shape in the center on a porcelain enamel advertisement and measures 12 across. This sign is in excellent condition and has vibrant colors. 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 Socony porcelain sign. 12 inches in diameter. Bright colors w/ porcelain on both sides.