Original electrical trade vintage catalog for UNION INSULATING COMPANY. Main office and plant was located in Parkersburg, WV. Manufacturers of switch boxes and insulated outlet, for use with non-metallic sheathed cable. Safety, economy, grounding, general data, details and mounting info is provided. No. 179, 169 and 165 lights are also shown. The boxes were used by Kuster-Wetzel Electric Company in Long Beach, CA. at the Lakewood Park project. Disbound from a large 1954 electrical construction materials book, this unique old four page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library. Pages are detached and may contain a small amount of residual glue on edge.