This Nessino lamp was designed by Giancarlo Mattioli for Artemide in the late 1960s. You often see this iconic design in orange and white, but this bright yellow color makes it very unique.
Consequently, the color was produced briefly and is no longer available.
The lamp has a brand and information on the bottom. (see photos)
It is in neat condition, has four light fittings and switch with cord.