One page, front and back, make up pages 527-528 from unknown publication, likely formerly housed in a binder as evidenced by the four hole punches along left side. Heading includes "Corning Glass Works, Corning, N. Y., Sales offices: New York, Chicago, San Francisco" along with list of authorized distributors. Below heading is article about "double-tough" glass pipe; images featured along right and at bottom. Subtitles of article include: Increased strength, Corrosion resistance, Physical properties, Visibility, cost, and Installation. Verso continues with following subtitles: Fittings; Special fittings; Plug cock valve; Specifications; and Joints and adapter connections. Verso also includes illustrations in lower right corner and four images throughout.