Original 1946 heating trade vintage catalog for the JOHNSON SERVICE COMPANY.  Main office and plant were located in Milwaukee, WI.

Manufacturers of Johnson Control - Automatic Temperature and Humidity for Heating, Cooling, Ventilating, Air Conditioning and Industrial Processes.

Products include 'Model' & 'Dual' Room Thermostats, Insertion & Immersion Thermostats, Thermometers, Humidity Control, Valves and Dampers, all are fully featured.

Has numerous product images, description, application and specifications to provide product details.

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