This work is included in the Provenance Research Project
, which investigates the ownership history of works in MoMA's collection.
Galerie Nierendorf, Berlin . Karl Buchholz, Berlin; on consignment to Buchholz Gallery (Curt Valentin), New York, August 18, 1937 ; seized by the Alien Property Custodian, New York, May , 1944; acquired by The Museum of Modern Art, New York, November 1945 .
 Artist's questionnaire, n.d., Collection files, Department of Drawings, The Museum of Modern Art, New York.
 Inventory no. 530 (Otto Dix, Two Heads). "Objects of art owned by Karl Buchholz," Vesting order no. 3711, NARA, Washington, DC.
 Sale of property vested by Alien Property Custodian, lot #23.
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