Original 1943 electrical trade vintage ad for STRUTHERS-DUNN, INC.  Main office and plant was located at 1321 Arch Street, Philadelphia, PA.

Manufacturers of Relays.  Relay-Timer Specialists.

Dunco Memory Relays. Mechanical Latch-in, Electrical Reset.

A Dunco Mechanical Latch-in, Electrical Reset never forgets!

Energizing the lower coil closes the armature which is automatically latched in place until it is re-opened by energizing the upper coil. Thus, the contact remembers unfailingly which coil was last energized, and remains in position until it is released by energizing the other coil.

Products include model 5HXX, 5AXA (large series 5) and 51BXX (midget series 51), are all featured.

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.