works by:

Sigfried Anzinger, Albert Müller, Lori Hersberger, Ian Anüll, Not Vital, Georgine Ingold, Corsin Fontana, Daniel Karrer, Sandro Ghia, Helmuth Federle, Maja Rieder, Carlo Aloe, Martin Disler, Alexandra Meyer, Otto Abt, Georg Baselitz, A.R. Penck, David Berweger, Hans Arp, Rolf Iseli, Marlene Righetti, Noori Lee, Markus Schwander, Walter Dahn, Leiko Ikemura, Thomas Rust, Roza El-Hassan, Mireille Gros, Irene Bisang, Cuno Amiet, Hanspeter Hofmann, Marcel Schaffner, Max Leiss, Clare Goodwin, Hans Schärer, Samuel Buri, Rudolf Maeglin, Markus Casanova, Claude Sandoz, Lenz Klotz, Dominik Zehnder, Bruno Seitz, Maja Bringolf, Stricker, Wolfgang Schneider, Sol Lewitt, Katharina Fritsch, Joseph Beuys, Jean Francoise Comment, Tiziano Barachino, Alberto Giacometti, Niklaus Hasenböhler, Ruth Widmer, Giovanni Giacometti, Kurt Fahrner, Mario Sala, Richard Serra, Verena Vanoli, Alois Carigiet, Max Beckmann, Walter Bodmer, Alois Mosbacher, Hubert Schmalix, E.L.Kirchner, Christian Rothacher, Guido Nussbaum,