Original windows trade vintage catalog for DeVAC, INC.  Main office and plant was located at 5900 Wayzata Blvd, Minneapolis, MN. 

Manufacturers of Windows. Products include Glasswalls, Ray-Vent Porch Enclosures, Double-Hung Windows DH-900, Ventilating Sash hopper type are featured. Has numerous product images with detailed descriptions, uses, applications, specifications and dimensions provided. Unbound from a large 1958 architectural product catalog, this unique old eight-page brochure would display beautifully matted and framed. Nice cover graphics. A fantastic addition to your vintage construction materials library. Pages may be loose and contain residual glue on edge.