Lamp's cover is made of genuine brass material complementing this vintage item nicely with it's golden colour. total height of the lamp is adjustable, length of the cable alone is 140cm and can be shortened to your preference. Takes one e27 light bulb (not included). A standard e26 american/canadian size also fits (tested). Works with 220v as well as 110v. 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, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.