1979 PPG Twindow Xi and Solarcool Glass Ad

This is a 1979 ad for a PPG Twindow Xi and Solarcool Glass! The size of the ad is approximately 6.5x10inches. The caption for this ad is 'This view made practical with energy efficient PPG glass' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collecction today!