Original old building material vintage catalog J. S. THORN COMPANY. Main office and factory was located in Philadelphia, PA.  Manufacturers of All Types of Steel Windows and Doors.  Lewis Tower, Arthur Hall, Architect, Ford Motor Company Assembly Plant, Edgewater, NJ, Albert Kahn Architect.  Pivoted Window, Projected Window. Disbound from a large 1938 construction book, this unique one page technical data specification sheet would display wonderfully matted and framed.