The twisted glass is hand-blown, displaying an irregular design with rounded shapes, all within a clear glass with traces of blue. The white, circular shade is decorated with irregular blue and yellow spots to complement the glass. It has its original label. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I 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.