Vintage Gulf Gasoline Porcelain Sign. This vintage Gulf Gasoline porcelain sign is a must-have for any collector or enthusiast of gas and oil memorabilia. Featuring the iconic Gulf logo and Super Service advertising, this sign is sure to be a standout piece in any collection. Measuring 7 1/2″ x 10″ and boasting vibrant orange and blue colors, this sign is perfect for display in a garage, man cave, or game room. It is your chance to own a piece of Gulf advertising. Vintage Gulf Gasoline porcelain sign. Super Service Die-cut Shape. 7 1/2″ x 10″. Vibrant colors and excellent porcelain.