Portrait of Eduard Kosmack

Estate of the artist;

Kunsthandlung Halm und Goldman, Vienna (per Kallir);

Ferdinand Eckhardt, Sr., Vienna, by 1927 (per inscription and exh. cat.);

Dr. Ferdinand Eckhardt, Vienna and thereafter Winnipeg, by descent;

C. G. Boerner, Düsseldorf, November 1988 (per Galerie St. Etienne)

Serge Sabarsky Gallery, New York, acquired from the above;

Estate of Serge Sabarsky, New York, by descent;

Serge and Vally Sabarsky Foundation, New York;

Neue Galerie New York, gift from the above, November 2016