This chandelier is made in Czechoslovakia. It features metal, glass, brass and plastic. It has aged patina. It has been repolished and in good original condition. It is US wiring compatible. 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.