This solid copper pair of Ultra pendants was designed by Jo Hammerborg for Fog & Mørup in the early 1960s. This version comprises an orange interior and consists of seven rings. It is stepped towards the top and at the bottom, and has a diffuser that was integrated by Hammerborg to filter and soften the light. 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.