Gianni Colombo (Milano 1937 - Melzo 1993) "Strutturazione acentrica (bianca)" 1981 perspex h 10.2 cm, diam. 10 cm Signed, dated ‘’gennaio 81‘’, numbered XX/XXXV and dedicated Provenance Private collection, Milan This work is accompanied by photo-certificate of authenticity issued by Archivio Gianni Colombo, Milan, with No. 1297