/ 48 Portraits (1971/72), Betty (1977), 11 Scheiben / Eleven Panes (2003). James Rosenquist : Rainbow / Arc-en-ciel (1961), Untitled (Joan Crawford says...) / Sans titre (Joan Crawford dit...) (1964), Horse blinders / Œillères pour cheval (1968–1969), Starthief / Voleur d'étoiles (1980). George Segal : Woman washing her Feet in a Sink / Femme se lavant les pieds dans un lavabo (1964–1965), The Restaurant Window I / La fenêtre du restaurant I (1967). Frank Stella : Seven Steps (1959), Ctesiphon III (1968), Bonin Night Heron No. 1 (1976). Wolf Vostell : Coca-Cola, Dé-coll/age (1961), Homage to Henry Ford and Jaqueline Kennedy (1967), Miss America (1968). Andy Warhol : Two Dollars Bills (Front and Rear) / 80 billets de deux dollars (recto et verso) (1962), 129 Die in Jet (Plane Crash) / 129 morts (catastrophe aérienne) (1962), Close Cover before Striking (Pepsi-Cola) / Refermer avant d'allumer (Pepsi Cola) (1962), Do it Yourself (Landscape) / Modèle pour peintres amateurs(paysage) (1962), Two Elvis / Double Elvis (1963), Red Race Riot / Émeute raciale rouge (1963), Boxes / Boîtes (1964), Flowers / Fleurs (1964). Tom Wesselmann : Bathtub 3 / Baignoire 3 (1963), Landscape No.2 / Paysage n° 2 (1964), Great American Nude / Grand nu américain (1967). Wolfgang Hahn Prize Since 1994 the Friends of the Museum Ludwig have honoured each year an international artist with the ‘Wolfgang Hahn Prize’, presented during the city's art fair Art Cologne. Both the annual highlight of the Friends' activities and one of the cultural features of Cologne and the Rhineland, this purchase prize is dedicated to the memory of Wolfgang Hahn (1924–1987), chief conservator and painting restorer at Wallraf Richartz Museum / Museum Ludwig and one of Cologne's most far-sighted collectors. The budget for the prize amounts to a maximum of 100,000 euros per annum. The museum also acquires a work from each prizewinner. An international jury chooses from the nominations submitted by the members. The Wolfgang Hahn Prize has been awarded to the following artists: 1994 – James Lee Byars 1995 – Lawrence Weiner 1996 – Günther Förg 1997 – Cindy Sherman 1998 – Franz West 1999 – Pipilotti Rist 2000 – 2001 – Raymond Pettibon 2002 – Isa Genzken 2003 – Niele Toroni 2004 – Rosemarie Trockel 2005 – Richard Artschwager 2006 – Mike Kelley 2007 – none awarded 2008 – Peter Doig 2009 – Christopher Wool 2010 – Peter Fischli & David Weiss