Robert-Estermann-Helmhaus-Opening-2 2018-12-02 from left to right: Members of the Zurich public art council Luigi Archetti, Ramona Brückner, Sabine Rusterholz Petko, Barbara Basting at the opening of “Kunstankäufe der Stadt Zürich 2011-2018”, Helmhaus Zürich, 30 November 2018