This piece is attributed to Gino Paroldo for Fontana Arte for form and style. The glass is very thick and is two-tone: green and brown. It is working. 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.