1929 Let the Mobiloil Oil Chart Guide You Ad #2399

This original 7 x 13" ad as published in a 1929 edition of an American Agriculturist, to recommend you let the Mobiloil - Gargoyle Logo - Oil Chart guide you in selecting the correct type of oil for your engine.  The ad comes untrimmed from its larger 10 x 13" page but the image has been cropped to just focus on the ad portion of the page.