you are bidding on one of a total of three. See joint photo of all three lamp bases together. the photo with the lampshade is for illustration purposes only, the lamp base comes without the lampshade. the lamps measure 46cm up to the socket. we have many other interesting original lamp bases from the mid-century modern period. the lamp requires an e27 bulb. Works with 220v and 110v. our lamps are tested, cleaned and suitable for use in the usa. 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, european plug (up to 250v).the wiring of this item may be original and might need replacement, if not specified otherwise.