JEB4959815 Conspiracy of the Luxembourg prison: caricature on the day of 13 April 1794 which saw numerous executions, a guard tries to catch a viscount who tries to escape by telling him that the ladder he must climb is that of the scaffold. Engraving of the 19th century; Musee Paul Arbaud, Aix en Provence; (add.info.: Conspiracy of the Luxembourg prison: caricature on the day of 13 April 1794 which saw numerous executions, a guard tries to catch a viscount who tries to escape by telling him that the ladder he must climb is that of the scaffold. Engraving of the 19th century; Musee Paul Arbaud, Aix en Provence); it is possible that some works by this artist may be protected by third party rights in some territories.