Original 1943 electrical trade vintage ad for JOHN C DOLPH COMPANY.  Main office and plant was located at 166-8 Emmett Street, Newark, NJ.

Manufacturers of Insulating Varnishes and Compounds.

You can depend on the uniform quality of Dolph's Insulating Varnishes.

When you specify Dolph's Insulating Varnishes, you get quality products. This is backed by 33 years of specialization in the field of electrical insulating varnishes together with the absolute control of raw materials and plant production. 

Unbound from a 1943 electrical engineering magazine, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics. World War 2 propaganda. A fabulous addition to your retro electrical library.