This listing is for a vintage paper advertisement. This is a 1947 ad for a Du Pont Cooling System Cleanser, Acid and Rust Inhibitor, Cooling System Sealer! The size of the ad is approximately 5.5x13.5inches. The caption for this ad is 'Before you put in anti-freeze' The ad is in good overall condition, with some wear / staining. This vintage ad would look great framed and displayed! Add it to your collection today!