Original insulation trade vintage catalog for THE PORCELAIN INSULATOR CORPORATION, was located at 1944 Harvey Street, Lima, NY. Manufacturers of PINCO insulators, pin type, high voltage, suspension, switch and bus, guy strain, clamps, socket fittings, attachments and equipment bushings are listed. Disbound from a large 1944 electrical construction materials book, this unique old eight page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric insulator library. Pages are detached and contains a small amount of residual glue on edge.