Autograph Letter Signed ('J. de la Gournerie') to an unnamed male correspondent ('Mon cher ami').

12mo, 1 p, 7 lines. Good, on lightly aged paper. He has received at the Ecole Polytechnique ('où je passe toutes mes journées les examens') his correspondent's 'important travail'. He sends his best wishes and thanks him for 'ce beau souvenir'. Loose in blue paper folder with catalogue entry for the previous sale of the letter laid down on front.