Slevogt, Max Landschaft mit fliegendem Vogel (Blick ins Leinsweiler Tal im Herbst) Moderne Galerie Thannhauser, Munich and Lucerne / Dr. Walther P. and Ingeborg K. Buchler, Brunswick (acquired circa 1968, until 2010 in the family collection) / Private collection, Northern Germany 30 1/8 x 34 1/4 in. Um 1920