This is a rare "cube" from the time of the Bauhaus, Dessau, produced by Atrax, designed by architect Walter Georg Kostka. In 1929 Walter Georg Kostka presented this cube for ATRAX at the International Advertising Show in Berlin. The Atrax cube was considered a new light component that adapted to modern architecture and spatial art. The cube was made of crystal-covered (double-walled) opal glass in a warm white tone. It has an E27-socket and works in every country. 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.