Original 1946 heating trade vintage catalog for McDONNELL & MILLER.  Main office was located in the Wrigley Building, Chicago, IL.

Manufacturers of Safety Devices for Steam and Hot Water Boilers.

Has product images, description, applications and specifications to provide product details.

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