Counterweight reading floor lamp from the 80s

Counterweight reading floor lamp from the 80s, in black lacquered metal and metal gray effect acrylic, height: approximately 130cm, I.e. Upright height: 105cm, arm length n•1: 50cm, arm length n•2: 80cm, base: 23x13cm, diffuser: 14x7cm, good condition and working condition, bulb supplied.