Original door trade vintage catalog for BYRNE DOORS, INC of Detroit, MI. Manufacturers of Airplane Hangars, Hangar Doors, Industrial Doors, Crane Entrance Doors and Movable Steel Partitions. Shown is US Civil Aeronautics Authority Experimental Station. Disbound from a large 1941 construction materials book, this unique old one page technical specifications brochure would display beautifully matted and framed. A marvelous addition to your retro industrial design library.