Pair of vintage brutalist wall lights from the 70s

Very beautiful pair of brutalist designer metal sconces from the 70s. Nice blowtorch work carried out by an artist in the 70s, these are beautiful, very decorative pieces and in good aesthetic and working condition. Electricity ok, bulbs are not provided and prefer leds so as not to burn the cisal inside. One is a little copperier than the other, maybe it can be cleaned, but I leave them in their juice. I really think it's copper the rear legs are a little shorter on one of the 2, the rear parts are slightly twisted (no incidence and flexible metal can be straightened) the diffused light is very pleasant creating an atmosphere without the same, they weigh 1360 grams dimensions: diameter 25 cm, depth 10cm.