GETULIO ALVIANI Udine 1939 Superficie a Testura Vibratile. Rotazione 1.2.3.4., 1972 Aluminum on panel, 2.7 x 88.5 x 88.5 cm Signed, dated and titled on the back Exhibited Vienna, Galerie Nachst St. Stephan, Alviani Castellani Colombo, 1972 Kreuzlingen, Galerie Letzer, Getulio Alviani, 1974 Caracas, Galeria Conkright, Getulio Alviani, 1974 Milan, Galleria del Naviglio, Getulio Alviani, 1983 Zagabria, Muzej Suvremene Umjetnosti, Getulio Alviani, 1997 Düsseldorf, Galerie Schoeller, Getulio Alviani, 2000 Gelsenkirchen, Stadtisches Museum, Getulio Alviani, 2001 Photo-certificate of authenticity by the Artist, 2013