Exceptional mid-century table lamp designed by louis kalff for cosack in the 1950s. Its foot is typical for the designer. The lamp is made of brass and metal. The light requires one e14 light bulb. Works with both 120/220v. Good vintage condition. Free worldwide express shipping. 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.