Henry Somm (François Clément Sommier, known as) (1844-1907) Invitation card to an Incohérents costume ball on March 11, 1885. Drypoint. 183 x 115. Fine proof on ivory laid paper. Nominative copy for M. Macon. Etched text printed in red and signed "Le Directeur des Incohérents / Jules Lévy". Light scattered foxing. All margins.