EVB2937638: Electrical outlets in an American home during World War II. The photo was released with the following conservation instructions: 'How to add years to the life of your electric cords: remove them gently but firmly from wall sockets. Don't pull or tug. When not in use, coil cord loosely around a hook.' 1943 / Bridgeman Images
EVB2937540: Switchyard at TVA's Wilson Dam hydroelectric plant, near Sheffield, Alabama. A series of electrical transformers topped with ceramic insulators, transfer power from the generation system of the Wilson Dam to the distribution system that delivered power to consumers. 1942 / Bridgeman Images
EVB2937669: A husband tunes the radio while his wife holds populist right-wing radio priest, Father Coughlin's newspaper SOCIAL JUSTICE, with a headline, STALIN ORDERS WORLD REVOLUTION. This comfortable middle class home was in Royal Oak, Michigan, where Father Coughlin was a priest. 1938 / Bridgeman Images