An important example of perfect simplicity, this lamp was designed by sybold van ravesteyn in 1926. Made of chrome-plated nickel, the design is now officially re-issued by giso verlichting in a limited edition. An iconic "less is more" design capturing the essence of minimalism and modernism in lighting. the lamp comes with a bakelite, button light switch, single e27 led light (bulb included), neutral braided cord and european 220v plug. the lamp has been documented in the following literature: the metropolitan museum of art collection, accession number 1980.237 sybold van ravesteyn archive. Het nieuwe instituut rotterdam, accession number raveph21 the essence of things - die essenz der dinge, editors: alexander von vegesack, mathias schwartz-clauss, vitra design museum, 2010. sybold van ravesteyn: architect, kees rouw, nai010 publishers, 2014. 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.