[PLACARD]. Placard of the Paris Commune, May 1871. Imprimerie Nationale. In-4 (40.5 x 29). Under glass, wooden frame. "The people of Paris to the soldiers of Versailles. Brother! The hour of the great struggle of the Peoples against their oppressors has arrived! Do not abandon the workers' cause! Do as your brothers did on 18 March! [Yellowed paper with soiling.