Original 1946 heating trade vintage catalog for the C A DUNHAM COMPANY.  Main office and plant were located at Chicago, IL.

Manufacturers of the Dunham Differential Vacuum Heating Systems & Control Equipment and Low Pressure Steam Heating Appliances, all are fully featured.

Has numerous product images, detailed illustrations, description, application and specifications to provide product info.

Unbound from a large rare 1946 Architectural Catalog, this unique old sixteen-page technical brochure would display beautifully matted and framed. Awesome cover graphics. A fabulous addition to your retro heating industry library. (Bulletin 635).