Richlube All-Point Lubrication porcelain sign features the large yellow lettering that Richfield is known for and is the perfect addition to any gas and oil or advertising collectibles collection. This sign has excellent colors and porcelain on both sides. 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 Richlube porcelain sign. 12 inches in diameter. Bright colors w/ porcelain on both sides.