Vintage bedside lamp

Bedside or desk lamp whose height can be adjusted on the vertical rod, and the orientation of the lighting is also articulated (see photos). The lampshade is made of opaline, the edges present on a few snags on one side. Electrification is probably to be redone, especially because there are two switches on the power cord... Traces of oxidation of the metal (greenish) and some white traces (?) on the support. Is it brass Bronze Diameter of the lampshade: 16 at the widest and 7 cm high without the socket cover. Maximum lamp size: height: 40 cm, maximum width (with lampshade orientation so that it is as protruding as possible: 45 cm.