1918 Standard Oil Company Nujol Ad - Isn't it worth a trial?

This is a 1918 ad for a Standard Oil Company Nujol! The size of the ad is approximately 6x9inches. The caption for this ad is 'Isn't it worth a trial?' The ad is in good overall condition, with some light wear. This vintage ad would look great framed and displayed! Add it to your collection today!