2819083 Alphonse Bertillon testifying before the second court martial of Alfred Dreyfus in Rennes (colour litho) by French School, (19th century); Private Collection; (add.info.: Alphonse Bertillon testifying before the second court martial of Alfred Dreyfus in Rennes. A self-described handwriting expert, Bertillon\'s testimony that Dreyfus had written the bordereau, the incriminating letter to the German military attache in Paris, was instrumental in both trials returning a guilty verdict against Dreyfus. M Bertillon deposant devant le Conseil de guerre de Rennes. Illustration for Le Petit Journal, 10 September 1899.); 穢 Look and Learn.