Very early French electric architects lamp from the 1920s. The head is articulated on its arm, as is the main support arm.
The lamp head has 3 lamp or bulb holders and is switched. One central bulb which provides a focussed light is complimented by two side lights which provide more general unrestricted light to the table or office. The bulb holders are currently B22 size and I can have the whole thing rewired if you like.
I particularly like the inside of the main lampshade, it reminds me of "Songs in the key of life" or a gramophone horn.