In addition to the rooms on the first floor, reflecting the bourgeoisie of the eighteenth century with portraits and furniture from the famous cabinetmaker Montbéliard Couleru Nicolas Abraham, visitors will discover the second floor double originality of Montbéliard, both Protestant German principality and city, mentioned through liturgical objects, and former domestic instruments. In the attic, they will visit a curious collection of music boxes made locally (Sword), dating from 1840 to 1914.