-1937 1848-1903 1853-1890 1867-1956 1880-1938 1883-1970 1884-1976 1904-1989 19thcentury 20thcentury art artists colorinart correspondence correspondencedümmler correspondencekirchner correspondenceknoblauch criticismandinterpretationkirchner dalí elfriede emil erich essen european exhibitions expressionism(art) gauguin germany gogh hansgeorg heckel karl kirchner landscapesinart nolde paul salvador schmidt-rottluff vincentvan