Original state. 3 glass bowls of thick, white cased and marbleized opal glass. Lit .: W. Uecker, Art Nouveau and Art Deco Lamps and Candlesticks, Herrsching, Germany, 1978, p. 29, For Example to identical. 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.