The pendant Kastor is one of the most famous designs by John Hammerborg. He designed for the Danish company Fog & Mørup. The model Kastor. - copper 8-shapes connected by a brass bracket together 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.