Original roofing trade vintage catalog for BIRD & SON, INC. was located in East Walpole, MA. Manufacturers of Neponset Built-Up Roofing, Flashings. Complete specifications for Bird Built-Up. Gravel or slag surface, crushed mineral surface, asbestine talc surface, roof insulation. Unbound from a large 1938 architectural catalog, this unique old twenty-four page technical specifications brochure would display beautifully matted and framed. Nice cover graphics. A fantastic addition to your retro roofing construction library. Pages are detached and contain a small amount of residual glue on edge.