 These machines, liked by drivers of the Chemin de fer de l'État, were nicknamed "Jocondes".The engines, numbered 230-781 to 230-800 with the Chemin de fer de l'État were renumbered 3-230.J.781 to 800 by the SNCF in 1938.Three locomotives (781, 783, and 793) received ACFI feedwater heaters.