Industrial accordion wall light, 1950s

Beautiful lamp, workshop wall light from the 50s. Accordion model. It pivots from right to left and the lampshade is articulated. There was work! I scraped it, cleaned it then I applied a colorless rust inhibitor and I finished with a colorless glossy varnish. I changed the cable. Good condition except for wear and tear from use and time (see photos) It works. Dim: l: folded: 40 cm unfolded: more or less 1.00 mh: 33 cm l: lampshade: 14.5 cm.