Advertising postcard for Pontiac Motorcars. Caption on back: This famous "glow" car, which was displayed in the General Motors building at the Golden Gate International Exposition, is the only model of its kind in the world. It is a full-size Pontiac 4-door sedan, the outer panels of which are made of "plexiglas," a new crystal-clear plastic. Being transparent, this material make it possible to see the rigid interior bracing of the Unisteel Turret Top Body by Fisher, the working mechanism of the no draft ventilation system and various mechanical features. It shows at a glace the hidden values that are built into Pontiac cars. See what you get when you buy a Pontiac! You don't look at this scientific marvel, you look through it! Sent to: Mr. A. H. Teigeler