Oil/canvas, 37 x 50,5 cm, lo. le. sign. a. dat. R. Amtsbühler 1921. - German landscape a. marine painter, studied at the Karlsruhe applied arts school among others under M. Laeuger, in 1903 he received a public commission by the Russion state a. lived in Moscow until 1918. - Lit.: Vollmer, Mülfarth.