Vienna around 1930/33, sales house & garden, brass, telescopic arm with cast brass regulator, rotating brass swivel arm, textile shade (renewed), adjustable height 156 - 200 cm, depth 53.5 to 120 cm. lit.: e. B. Boltenstern, wiener möbel, stuttgart 1934, p. 88, illustration - m. Wallner, haus & garten - frank & wlach, graz 2008, p. 289, l 10. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution, european plug (up to 250v).the wiring of this item may be original and might need replacement, if not specified otherwise.