Ca. 1925, pencil drawing, 29 x 18,5 cm, on the reverse estate stamp with signature of Paula Klein, matted a. framed under glass, uninspected out of frame. - Literature: Cf. cat. rais. Pfefferkorn 103. - Important German painter, graphic artist a. stage designer who participated in a. shaped all important movements of avantgarde of the 20th cent. K. studied at the Hamburger Kunstgewerbeschule a. at the Unterrichtsanstalt des Kunstgewerbemuseums in Berlin. Later he became board member of the Deutscher Werkbund. In 1910 he was co-founder of the Neue Sezession as well as of the Novembergruppe. He lectured at the Berlin academy, in 1945 he was the first German artist to be exhibited in London. His brother is the painter Bernhard K.