Sewer Facts: Valuable Information about Sewer Construction and Pipe Materials (w/ "Standard Specifications forClay Sewer Pipe," 1940, and promotional brochure laid in).
Pittsburgh, PA: Clay Sewer Pipe Association, Inc., 1941. Seventh Edition. Spiral Bound Wraps. Octavo, pp. 75, richly illustrated w/ b/w photographs. Very Good. Item #7273