These two Stilnovo pendant lamps are attributed for form,style and many publications. The glass is named "opaline", in white glass. No label and mark. 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.