BERLIN (REUTERS).- A gallery has discovered four paintings by Otto Dix, the German expressionist whose art chronicled the horrors of World War One, the depravity of the Weimar Republic and was labeled “degenerate” by Adolf Hitler. Famous for works critical of the darker side of German society in the 1920s, Dix’s paintings were discovered among the belongings of his wife, gallery owner Herbert Remmert told Reuters Wednesday. The paintings were found in a portfolio untouched for decades on an estate in Bavaria owned by the ancestors of a Duesseldorf doctor and art collector who remained close to Dix even after his wife left him for the artist. The three watercolors and one painting-study date from the first two years Dix spent in Duesseldorf from 1922-1925. “This period represents some of the most important years for Otto Dix as an artist,” Remmert said. “It was during this time that Dix really developed his themes. Even his technical skills developed — his watercolor paintings m