Watercolour, 32,5 x 32 cm, lo. ri. sign. a. dat. Sprotte IV 89, framed under glass, uninspected out of frame. - Painter a. drawer with background of philosophical aesthetics. S. was pupil of E. Orlik in Berlin and K. Hagemeister in Werder/Havel. He worked a. 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.