The shade is square, thick etched glass with a textured finish, the mount is brown metal. The glass creates a fantastic light atmosphere, the E 27 socket has a porcelain thread This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution, Up to 250V (Europe/UK Standard).The wiring of this item may be original and might need replacement, if not specified otherwise.