Made in czechoslovakia. Made of glass, brass 1x e27 or e26 bulb. Re-polished. Fully functional. Good original condition. Us wiring compatible. Wear consistent with age and use. 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.