Watercolour, 46,5 x 60,5 cm, lo. le. sign. and dat. S. Sprotte 86, unframed. - Painter and draughtsman with background of philosophical aesthetics. S. was pupil of E. Orlik in Berlin and K. Hagemeister in Werder/Havel. He 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.