Original roofing trade vintage catalog for AUGUST KUHNLA, INC. Main office was located at 10-20 Lorimer Street, Brooklyn, NY. Manufacturers of KuPe stage ventilators, automatic ventilating skylights. Products include No. 67 for theaters, schools and auditoriums is shown. Unbound from a large 1933 architectural catalog, this unique old one page technical specifications brochure would display beautifully matted and framed. A fantastic addition to your retro roofing construction library. Light damp stain on top and bottom edges.