Original industrial trade vintage catalog for NATIONAL FIRE PROOFING COMPANY, main office was located in the Falcon Building, Pittsburgh, PA. Manufacturers of Natco floor, roof, ceiling, wall furring, lock-joint sewer tile and tex-tile. Shown are flat arches, natcoflor, the Johnson system of floor construction, segmental arch and XXX hollow tile. Disbound from a large 1916 industrial catalog, this unique old two page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro industrial equipment library. Pages are detached and may contain a small amount of residual glue on edge.