Original insulation trade vintage catalog for AMERICAN FLANGE & MANUFACTURING. COMPANY, INC. main office was located at 30 Rockefeller Plaza, New York City, NY. Manufacturers of Metal Insulation for Homes. Ferro-Therm. Modern Theories and Practice in Insulation, Metal Insulation Advantage of Ferro-Therm, Details for Installing, Specifications, Refrigeration. Used in Residences of Lawrence, Long Island, Mamaroneck, NY, Teaneck, NJ, Glen Ridge, NJ, and St. Albans, Long Island. Unbound from a large 1938 architectural catalog, this unique old twelve page technical specifications brochure would exhibit beautifully matted and framed. Nice cover graphics. A fantastic addition to your retro insulation collection. Pages are detached and may contain a small amount of residual glue on edge.