Basel, Switzerland: Galerie Beyeler, 1963. First edition. Softcover. Exhibition catalog for a group show that ran October through December 1963. Text in English and German. Includes tipped in color and black and white illustrations along with biographical information and a checklist. A clean near fine copy in wrappers and in a very good acetate dust jacket with a tear to the top of the rear panel near the spine and some other minor wear.