The artist; sold through Galerie Alice Pauli, Lausanne, Switzerland, to private collection, Lausanne, by 1968 [Zurich 1968]; sold, Galartis, Crissier, Switzerland, Dec. 8, 2012, lot 760, to Lebreton Gallery (Karim Mehanna), San Francisco; private collection, Monaco [correspondence from Lebreton Gallery, Mar. 25, 2019; copy in curatorial object file]; sold to Marlborough Gallery, New York, Aug. 1, 2019 [Marlborough Gallery invoice, Aug. 1, 2019; copy in curatorial object file]; offered to the Art Institute of Chicago, 2022.