Autograph musical manuscript. Air varié pour un violon avec accompagnement Piano-Forte Handwritten 11 Pages , brown ink on paper in-4 236mm x 320mm illustrated with birds Swiss conductor and composer Jean "John" Louis Octave Grasset (1816-1892) Rue John-GRASSET in the Augustins quarter of Geneva, Switzerland, named after Swiss conductor and composer Jean "John" Louis Octave Grasset (1816-1892).