The series consists of materials extracted from the Biographical Dossiers and rearranged by year and month. Either for personal or historical reasons, Batchinsky selected materials he considered most important: correspondence, photographs, clippings, whole newspapers and documents. Where they exist, his notes of such transfers, written on various containers, are filed at the front of the year.
The monthly Chronological Dossiers (CD) form the second major file created by Batchinsky. They consist of about four hundred folders on contemporary events spanning the periods of 1914-1968.