This pair of elegant sconces was manufactured by rupert nikoll in vienna during the 1950s. It was designed by emil stejnar and features an impressive combination of brass elements with lacquered wire and acrylic glass pearls. The company was founded in 1908 and manufactured several lighting objects designed by the famous austrian jeweler and designer emil stejnar. additional technical information - comes with the original cables / electrical components - suitable for 110v - 250v in all countries - requires e14 screw base bulbs - us: requires e12 with e12 to e14 screw base adapters i have official proof of authenticity such as vintage catalogs, designer records, or other literature sources 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.