Chevrolet porcelain sign features “It’s OK To Look – But Don’t Touch” Sign. The porcelain service sign features a vibrant red color scheme that will add a pop of color to any garage or man cave. 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. Chevrolet – It’s OK To Look. But Don’t Touch. Bright colors w/ porcelain on both sides.