Original roofing trade vintage catalog for THE RILE COMPANY, INC. was located at 247 McDougall Avenue, Detroit, MI. Manufacturers of Roof and Floor Sumps, made of Cast Iron. Rain Drain standard with many of the best architects and engineers for all classes of buildings. Unbound from a large 1931 architectural catalog, this unique old two page technical brochure would display beautifully matted and framed. A marvelous addition to your retro roofing construction library. Slight damp stain on outer edge.