A French Louis XVI-style gilt bronze porcelain mounted sculptural mantel clock garniture, third quarter 19th century

8-cm enamel dial with blue Roman numerals signed Lerolle, foliate pierced hands, similar signed rack bell striking movement with Brocot escapement, gilt bronze case surmounted by an armorial sphere and scientific attributes, flanked by a genus holding a book, moulded breakfront base inset with polychrome porcelain panels raised on turned feet, together with two ornamental urns inset with porcelain plaques with female portraits