Original insulation trade vintage catalog for MICA INSULATOR COMPANY, of Schenectady, NY. Manufacturers of Micanite, Empire, Lamicoid, Mico electrical insulating and laminated plastic materials, varnished fabrics and papers. Commutator segment insulation, mounding and flexible plate, fiberglass sheet are discussed. Disbound from a large 1943 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 contains a small amount of residual glue on edge.