PH Artichoke Lamp by Poul Henningsen. Design allows viewing the fixture from any angle without seeing the light source. The original Artichoke lamps were developed for a restaurant in Copenhagen called the Langelinie Pavilion, where they are still hanging today.
Reference: "Taend! PH lampens historie", by Tina Jœrstian and Poul Munk Nielsen. See page 277.
Produced by Louis Poulsen.