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.

These Specifications Call for Dolph's Insulating Varnishes.

For years, many electrical manufactures throughout the country have incorporated Dolph's Insulating Varnishes into their specifications. They realize it pays to use the best insulating varnish for they know their electrical units are no better than the varnish which protects them.

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.