1978 Caterpillar Tractor Co. Ad - Running Low on Oil

This is a 1978 ad for a Caterpillar Tractor Co.! The size of the ad is approximately 6.5x10inches. The caption for this ad is 'We're running low on oil. We must conserve. We must find new energy sources' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collecction today!