Sotheby's Impressionist & Modern Art Day Sale on 27 February is led by Théo van Rysselberghe’s A l’ombre des pins (Agay) or Sous les pins (Agay) from 1905, as well as important works by Degas, Renoir, Moore and Dali. The sale also features a compelling selection of German and Russian works of art from the collection of Dr. Erika Pohl-Ströher, including an extraordinary Abstrakter kopf, by Alexej von Jawlensky. Click the image above to view the slideshow.