Pennzoil Motor Oil porcelain sign features the iconic logo of the red Pennsylvania bell. This sign has excellent large lettering and porcelain. The sign measures 11 3/4 inches across. 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. 11 3/4 inches in diameter. Bright colors w/ porcelain on both sides.