CH826572 Le Violon, c.1915-1916 (gouache and pencil on board) by Gris, Juan (1887-1927); 30.5x26 cm; Private Collection; (add.info.: Le Violon. Juan Gris (1887-1927). Gouache and pencil on board. Executed circa 1915-1916. 30.5 x 26cm.); Photo .... Christie's Images; Spanish, out of copyright