August Macke "IM ZOOLOGISCHEN GARTEN" On the reverse with the oval estate stamp Lugt 1775 b (attenuated) 1913/14 Pen and India ink on paper 23,9 x 18,6 cm Private collection, North Rhine-Westphalia Paula Modersohn-Becker ? August Macke. Basel, Kunsthalle,1936, cat. no. 161 / August Macke. Handzeichnungen und Aquarelle. Bremen, Kunsthalle, 1964/65, cat. no. 79 / August Macke 1887-1914. Aquarelle und Zeichnungen. Münster, Westfälisches Landesmuseum fü Heiderich 1876 On the cardboard backing a label of Städtisches Kunstmuseum, Bonn 23,9 x 18,6 cm