EVB2937629: Control panel and dynamo (generator) of a self-contained electric power station that might be used for a large house or small factory before electricity was available from public utilities. Rotating dynamos created electricity by converting power coal fired steam engines, and turbines powered by flowing water / Bridgeman Images
EVB2937644: 1920's showroom of Schneider Electric Store in Washington, D.C. Among the electric consumer products on display include: lamps, fans, space heaters, floor cleaners, clothes washers, refrigerators, toy trains, percolators, hotplates, toasters, irons and hair wavers. Westinghouse and General Electric brands are prominent / Bridgeman Images