Probably Cassirer, Amsterdam [the mounts of photos in both the Rijksbureau voor Kunsthistorische Documentatie, The Hague, and the Witt Library, London, are marked Cassirer, Amsterdam, 1939, though the picture was at the Art Institute from late 1935; the Witt photo is also annotated “Worcester, Mass.”; see also Vroom 1945 and Bergstrom 1956]. M. Knoedler & Co., New York by 1935 [receipt dated September 9, 1935 in Registrar’s office; the number A 1559 printed on a label on the back may be the Knoedler’s stock number]; sold to the Art Institute, 1935.