Vintage USA articulated desk lamp very large model 50 to 85 cm B933

Here is an old articulated desk lamp, in brown lacquered metal. Art deco style. Vintage usa Circa 1950, marked on the base "flexo- art specialty co - chicago illinois and underneath "underwritters laboratories - portable lamp". Two buttons on the lampshade to turn on and off. Comes with two bulbs. Dimensions: height: from 50 to 90 cm, width: 50 cm, length of the lampshade: 46 cm. Weight: 7.5 kg, neat package: approximately 9.5 kg. Condition: set in good condition, some small scratches and traces of use, as in the photos. Any questions, you are welcome to ask!.