Original door trade vintage catalog for THE EDWARDS MANUFACTURING COMPANY of Cincinnati, OH. Manufacturers of rolling steel doors and shutters. Lester G. Wilson, consulting engineer and patentee. Doors have been designed and constructed for doorways of all sizes u to 40 feet in width and openings over 100 feet in height. Disbound from a large 1916 engineering construction book, this unique old one page technical specifications brochure would display beautifully matted and framed. Contains a small amount of residual glue on edge.