Watercolour/japan, 45 x 59,5 cm, lo. le. sign. a. dat. S. Sprotte 58, matted a. framed under glass, uninspected out of frame. - Painter a. drawer with background of philosophical aesthetics, pupil of E. Orlik in Berlin and K. Hagemeister in Werder/Havel, worked and lived in Kampen on Sylt, where he became a central figure of artistic life. - Mus.: San Francisco (Museum of Modern Art), Shanghai, Moskau, Stuttgart, Husum a. others. - Lit.: Vollmer a. others.