Oil/cardboard, 20,5 x 22 cm, lo. le. sign. S. Sprotte, matted, 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, Moscow, Stuttgart, Husum a. others. - Lit.: Vollmer a. others.