T. Jørstian, P. E. Munk Nielsen, "Light Years Ahead: The Story of the PH Lamp", Editions Louis Poulsen, Copenhagen, 1994. Exemplaires simiaires reproduits pp. 276-77, 280
Comment:
EARLY COPPER “PH ARTICHOKE” PENDANT LAMP BY POUL HENNINGSEN FOR LOUIS POULSEN CIRCA 1958; Diameter: 23.62 in.