Old industrial lamp with glass shade in diamond optics. Gdr - production of veb leuchtenbau, leipzig. Green sheet steel body with transparent glass shade in diamond optics resulting in interesting light -shadow effects. The separate cylinder originally contained a ballast, which was dismantled. Operation with led possible. Original e40 socket. With adapter to e27 reduced. very nice vintage condition. 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, european plug (up to 250v).the wiring of this item may be original and might need replacement, if not specified otherwise.