Watercolour, 4 x 9,5 cm, lo. ri. sign. a. dat. V. P. Mohn 80, matted a. framed under glass, uninspected out of frame. - German painter a. draughtsman. M. studied 1861-66 at the Berlin academy, in addition he was pupil of Ludwig Richter. In 1868/69 he was in Italy. He became professor in Dresden but moved to Berlin in 1885, where he was made professor at the Königliche Kunstschule in 1905. - Mus.: Berlin (Nat.-Gal.), Meißen, Bautzen. - Lit.: Boetticher, Thieme-Becker.