Original flooring trade vintage catalog for J. B. EURELL COMPANY. Main office was located at 225 South Fifteenth Street, Philadelphia, PA. Manufacturers of gypsum floor and roof construction. The suspension system and the formula used are based upon the simple principles of the suspension bridge. Cold drawn, twisted steel cables are laced across the floor or roof and are securely anchored at both ends to the wall purlins or beams. Used at Bethlehem Steel Company, Baldwin Locomotive Works and Philadelphia Rapid Transit Company. Unbound from a large 1931 architectural catalog, this unique old one page technical specifications brochure would display beautifully matted and framed. A fantastic addition to your retro flooring construction library.