Color print advertisement for Dow Plastics. The advertisement features a photograph of two men in suits consulting over a blueprint. The accompanying text notes that "war-time blueprints" are being enclosed in sheet protectors made of Ethocel, the brand name for Dow Ethylcellulose, which was developed and marketed for a range of industrial uses. Other products mentioned in the text include Saran, used in woven fabrics and flexible tubing, and Styron, the trade name for Dow Styrenic plastics.