Raphael Kirchner 1876–1917, Austria. https://www.artnet.com/artists/rapha%C3%ABl-kirchner/ via : https://poramoralarte-exposito.blogspot.com/2017/01/raphael-kirchner-1876-1917_29.html https://poramoralarte-exposito.blogspot.com/2017/01/raphael-kirchner-1876-1917.html