I believed Membrane were part of Toni Zuccheri collaboration with VeArt in the 1970s. This table lamp shows the Membrane sphere over a Classic Midcentury base. Iconic piece with a perfect ingredient combination.

Base reads and other identifications, references and evaluation: Base carries the pressed punched stamp: Venini Murani Made Italy. There are other on the net with a cylindrical base. This is a rare version.