Original window induatry trade vintage catalog for HABITEK, INC. Main office and factory was located at 333 East Airy Street, Norristown, PA. Manufacturer of Greenhouses. Custom design to fit virtually any living space. From a small skylight to a large greenhouse, Instant Greenhouse adapts the structure to your needs. Features passive solar energy savings, adaptable glazing materials, rugged construction, and interior thermal glazing system. Numerous images and architect specifications provided. Unbound from a large 1982 architectural catalog, this unique old four page technical brochure would display wonderful matted and framed. A fabulous addition to your retro window weatherstrip library. Pages are detached and may contain a small amount of residual glue on edge.