Oil/artist's board, 40 x 30 cm, lo. le. sign. Sprotte as well as indistinctyl dat., unframed. - 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.