MAUROIS (André). L'Instinct du bonheur. Novel. Paris, Grasset, 1934. In-4, midnight blue calf, gilt stars on spine and boards, smooth spine, gilt author and title, calf-edged spine decorated with a double gilt fillet, gilt edges on witnesses, cover and spine (Georges Cretté). First edition. One of 11 copies reprinted in-4° tellière on japon nacré, (n° II), Autograph signed letter from the author to Louis Brun, director of Grasset. Spine very slightly faded, small rubbing at foot corners.