The lamp has a double glass shade and a black Bakelite base. The Brüne Glass factory (1948-1971) was located in Porz, Germany, near Cologne, and was founded by Fritz, Hellmuth, and Herbert Brüne. The company also collaborated with Philips on specific designs, with Brüne often supplying the glass covers for luminaires containing Philips components. 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.