Original 1943 electrical trade vintage ad for FEDERAL TELEPHONE & RADIO CORPORATION.  Main office and plant was located at 1000 Passaic Avenue, East Newark, NJ.

Manufacturers of IT & T Selenium Rectifiers.

Announcing a new method of assembly resulting in greater protection from salt sea and air.

Now IT & T Selenium Rectifiers, in addition to the standard assembly, can be supplied with a special assembly, coated for protection against the corrosive action of salt spray, moisture and humidity. This means that IT & T Selenium Rectifiers, noted for trouble-free conversion of AC to DC, can now be used under extreme conditions of marine and other high humidity service.

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.