Extendable brass arc lamp with resin cocoon shade by Hustadt leuchten, 1970s

Rare arc lamp from hustadt leuchten from the 1970s. The extendable frame of the lamp is alloyed with brass and ends in a marble base. The shade is made of a resin material and can be tilted into a desired position by means of a joint. Good used condition - there are slight blemishes on the cocoon umbrella (see photos). E27 socket.