Made by Kamenicky Senov in the 1960's, in former Czechoslovakia. Made of brass, metal and glass. Original condition, with a few signs of use (such as dust stuck in some of the glass tubes). Repolished, cleaned, fully functional. 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.