

Incandescent carbon filament lamp, screw fitting, made by the Edison Electric Light Company, New York, c.1885, light is produced in a heated filament which is prevented from burning away inside a glass bulb.
Incandescent carbon filament lamp, screw fitting, made by the Edison Electric Light Company, New York, c.1885, light is produced in a heated filament which is prevented from burning away inside a glass bulb.