Original 1921 electrical trade vintage magazine ad for the WARD LEONARD ELECTRIC COMPANY. Main office and plant were located in Mount Vernon, NY.

Manufacturers of Vitrohm Resistor Units - Highest Ohms in Smallest Space.

Vitrohm (vitreous enamelled) insulation seals the finest resistance element against disintegration or loss of value from any regular service cause. Also affords electrical and mechanical protection to the joint between terminal leads and resistance element.

Ward Leonard Vitrohm ensures permanent value units, permits of highest ohms in given space, and with maximum heat dissipating capacity.

Has product image, description and applications to provide product details.

Unbound from a rare 1921 Electrical World magazine, this unique old one-page technical magazine advertisement would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro electrical industry library.