Art Deco wall light, opaline, white, marbled

Beautiful wall sconce in white or opaline glass. Ingenious screw-on shade for easy removal. Screen height: 46 cm. Shade diameter: 17 cm at the base, 14 cm at the top. Diameter at the top: 13 cm. A unique feature is the round mirror at the base of the sconce. All original. White, with a green marbled shade. Overall, in good condition; the metal has been cleaned to remove some slight verdigris. Very rare.