Mid-century pendant light by Erco. The cylindrical shades are made of translucent plastic and feature a ribbed surface. The socket and suspension are simply clipped into the plastic shade with a spring. 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, Up to 250V (Europe/UK Standard).The wiring of this item may be original and might need replacement, if not specified otherwise.