Original electrical trade vintage catalog for THE ARNOLD ENGINEERING COMPANY.  Main office was located at 147 East Ontario Street, Chicago, IL.

Manufacturers of Permanent Magnets for Industry.  Products include Radio, Sound and Communications Equipment, Automotive and Aviation Equipment, and Test Instruments. Has numerous product images with detailed descriptions, uses, applications, dimensions, specifications and data charts provided. Unbound from a large wartime 1945 engineering designer catalog, this unique old twenty-four page technical brochure would display beautifully matted and framed. Awesome cover graphics. A fantastic addition to your vintage electrical equipment library.