Horlogerie. Montre a Reveil et Montre a Equation; а Secondes Concentriques marquant tas Mois ebleurs Quantiemes. Engraving is dated to the 18th century.
Horlogerie, Vue perspective de la Machine de Sulli pour fendre les Roues (the Clockwork inside out: its building and the operational principle). The engraving is dated to the 18th century.