 Complete the following phrase:  From 1928 to 1930, Schlemmer worked on nine murals for a room in the Folkwang Museum in Essen. After leaving the Bauhaus in 1929, Schlemmer took a post at the Akademie in Breslau, where he painted his most celebrated work, the Bauhaustreppe, Bauhaus Stairway 1932; Museum of Modern Art, New York. He was obliged to leave the Breslau Academy when it was closed down in the wake of the ficial crisis following the Wall Street Crash, and took up a professorship at Berlins Vereinigte Staatsschulen für freie und angewandete Kunst United State School for Fine and Applied Art in 1932, which he held until 1933 when he was forced to resign due to pressure from the Nazis. The Schlemmers then moved to Eichberg near the Swiss border, and then to Sehringen before his pictures were displayed at the 