This pendant lamp was designed by Otto Müller in 1931 and manufactured by Sistrah Licht GmbH in Germany. The name Sistrah derives from the German “sie strahlt hell”, she shines brightly. The designs were intended to produce a non-glaring light that could be focused accurately, especially suitable for medical environments. Their stepped one-piece glass shades were also easier to clean than metal shades. It is made of nickel-plated metal and glass. The upper shade is made of white opaline glass, the under shade of transparent glass. This pendant lamp is in very good vintage condition. It is marked. The lamp is rewired and needs one bulb. 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.