Twist articulated workshop lamp

Old articulated workshop lamp twist t1 in beige metal. Produced in the 70s, these lamps were used by draftsmen in their workshops, they have two articulated arms and attach to the table or desk with a small support (for this one it is new). The lampshade is equipped with a switch on top, it is equipped with a screw socket with an e27 bulb. It works perfectly but remains in its juice, you can see traces of wear on the lampshade that reveal the metal, I wanted to renovate it, but I preferred not to touch it to keep a vintage spirit. Weight 1, 200 kg. Max height 80 cm. Upper arm 40 cm. Lower arm 50 cm. Length of the lampshade 19 cm. Width " " " 17 cm.