The artist; by inheritance to Lily Klee (1876-1946), Bern, 1940 ; acquired by the Klee Gesellschaft (Klee Society), Bern, 1946 ; sold to Galerie Rosengart, Lucerne, by 1948 ; sold to Carstairs Gallery (Georges F. Keller), New York, by 1948 ; The Museum of Modern Art, New York (Acquired through the Lillie P. Bliss Bequest), 1950.
 Paul-Klee-Stiftung, Kunstmuseum Bern, eds. Paul Klee: catalogue raisonné. Bern: Benteli and New York: Thames and Hudson, vol. 6 (2002), no. 5971.
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