Original theatrical trade vintage catalog for AUTOMATIC DEVICES COMPANY. Main office and factory was located in the Samuels Building, Allentown, PA. Manufacturers of Curtain Machines, Curtain Tracks and Motor Generators. Silent Steel Curtain Track, Autodrape Automatic Curtain Machines. Used in New York City Public Schools, Paramount-Publix Theatre, Warner Bros, Balaban & Katz, Loews, Fox, Waldorf-Astoria Hotel, General Motors Co., Army Posts, University of Maine, and many more. Disbound from a large 1938 architect construction materials book, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electrical equipment library.