Made in czechoslovakia made of glass cable compatible with usa 1x e27 or e26 bulb polished fully functional good original condition. Height adjustable. 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.