- La Cedille Qui Sourit
- George Brecht, Robert Filliou, Johannes Cladders
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Städtisches Museum Mönchengladbach, 1969 ⁄ a cardboard box containing matchbook sized box with 3 metal hooks, and booklets ⁄ edition of 440
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- Skulptures: England, Germany, Africa, America, 1966-1970
- Richard Long, Johannes Cladders
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Städtisches Museum Mönchengladbach, 1970 ⁄ original cardboard box containing exhibition catalogue ⁄ edition of 330
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- Postkarten – Carte postale – Correspondenzkarten. Stilkunde an Beispielen.
- Johannes Cladders, J & J
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Städtisches Museum, Mönchengladbach, 1974 ⁄ a cardboard box containing 40 postcards, 2 sheets, 20 tabs ⁄ edition of 330 ⁄ - ⁄ Contains 20 artist postcards by Ben Vautier, Joseph Beuys, Christian Boltanski, Marcel Broodthaers, Daniel Buren, Christo, Chuck Close, Marcel Duchamp, Robert Filliou, Gilbert & George, Jean-Olivier Hucleux, Yves Klein, Jean Le Gac, Fernand Léger, Hermann Nitsch, Claes Oldenburg, Panamarenko, Pablo Picasso and George Segal
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- Serielle Formationen
- Peter Roehr, Paul Maenz
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Studio Galerie (Frankfurter Universität), 1967 ⁄ softcover containing six original graphical works (Ewerdt Hilgemann, Charlotte Posenenske, Peter Roehr, Konrad Lueg, Herman de Vries, Kuno Gonschior) ⁄ edition of 500 ⁄ - ⁄ Carl Andre, Arman, Siegfried Baetels, Thomas Bayrle, Ronald Bladen, Hans Breder, Enrico Castellani, Christo, Herman De Vries, Jan Dibbets, May Fasnacht, Eberhard Fiebig, Dan Flavin, Raimund Girke, Hermann Goepfert, Kuno Gonschior, Hans Haacke, Jan Henderikse, Ewerdt Hilgemann, Ewwerdt Hilgemann, Bernhard Höke, Donald Judd, Jiri Kolár, Yayoi Kusama, Walter Leblanc, Kaspar-Thomas Lenk , Sol LeWitt, Konrad Lueg, Adolf Luther, Paul Maenz, Piero Manzoni, Agnes Martin, Almir Mavignier, Henk Peeters, Larry Poons, Charlotte Posenenske, Markus Raetz, Bridget Riley , Peter Roehr, Dieter Rot, Felix Schlenker, Wolfgang Schmidt , Jan J. Schoonhoven, Klaus Staudt, Michael Steiner, Frank Stella, Paul Talman, Günther Uecker, Victor Vasarely, Andy Warhol
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