2 foot round Castrol metal sign, found in a barn not sure of its age , (could do with a clean)any questions please ask. The item “Barn Find Vintage Large Castrol Sign Not Enamel” is in sale since Sunday, April 15, 2018. This item is in the category “Antiques\Architectural Antiques\Signs”. The seller is “troymossi” and is located in Kidlington. This item can’t be shipped, the buyer must pick up the item.