An exceptional wall lamp by cosack. The lamp is from the 1960s and made in germany. The body of the lamp is made of brass. The light requires one e27 (us e26) light bulb. Works with both 120/220v. Good vintage condition. 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.