Lettre autographe signée à propos d'informations concernant Dostoïevsky en vue de l'écriture d'une biographie

Letter autograph signed by a page of Henri Troyat to a lady about information concerning spinetoevsky for a biography project.
Two folds inherent to the enveloping.
"I would indeed be very happy to complete thanks to you my documentation on spinetoevsky ..."
Henri Troyat, letting the holiday season pass, proposes to his correspondent to arrange an appointment to advance his research.