Sergio Mazza (Milano 1931) Wall lamp model "Pi parete". Produced by Artemide, Milan, 1960s/1970s. Satin and dark brown lacquered aluminum, acid-etched blown glass on the inner surface. In original box. Accompanied by quality control sheet dated 25/8/76. (25x35x35 cm.) Provenance Stilcasa shop by I. Salmoiraghi, Busto Arsizio