Figure 6. Stampsissued in the Musée de la Poste de Paris commemorating the inventors of the fundamental biotechnological processes of Appertisation and Pasteurisation. Stamps in the Musée de la Poste de Paris commemorating Nicolas Appert (1749 - 1841) postage stamp designed and engraved by Henry Cheffer, 1955 (all rights reserved) and copyrighted Musée de la Poste de Paris; Louis Pasteur (1822 - 1895) postage stamp designed and engraved by Jacques Gauthier, 1973 (all rights reserved) and copyrighted Musée de la Poste de Paris; In: Geniuses with Postage Stamps.