Original window trade vintage catalog for ANDEL & COMPANY, INC. Main office and plant was located at 5218-5220 North Kedzie Avenue, Chicago, IL. Manufacturers of Andelco Lightproof Curtains. Air Conditioning and Ventilating Equipment. For use wherever absolute darkness during daylight hours is desired. Used on widows in school auditoriums, laboratories, X-Ray & dark rooms, operating rooms, autopsy Amphitheatre and clinics. Unbound from a large 1938 architectural catalog, this unique old one page technical brochure would display wonderful matted and framed. Nice graphics. A terrific addition to your retro window curtain library.