August Heitmüller, Boy with tin drum 1923 Signed and dated upper left: Heitmüller. 23. On the back board a label of the exhibition Hanover 2001 (see below) 85,4 × 61 cm Oil and gold leaf on canvas Private Collection, Lower Saxony (loan to the Sprengel Museum Hanover from 1991-2021) „Der stärkste Ausdruck unserer Tage“ – Neue Sachlichkeit in Hannover. Hannover, Sprengel Museum, 2001, cat. no. 49, ill. p. 142