POINCARÉ, H. Les méthodes nouvelles de la mécanique céleste. Paris, Gauthier-Villars & Fils, 1892-99. 6 parts in 3 vols. Lge-8°. Old cl., all owrps. bound up, uncut. (Text a bit age-toned, 3rd vol. bound in a slightly deviant colour blue, but a fine set).
First edition. - DSB XI, p. 57.€ 300
result € 360