Ferdinand Berthoud Paris Skeleton bracket regulator Brass, bronze, marble, enamel Height: 49 cm. Width of base: 24.5 cm. Depth of base: 14.5 cm Signature on pendulum bob: Ferdinand Berthoud Circa 1800 The clock rests on a marble base decorated with gilded bronzes, with a mask of Medusa in the centre flanked by two stars. The white enamel dial has Roman numerals for the hours and Arabic numerals for the date. Two pierced and engraved brass fleuron hands indicate the hours and minutes. Two blued steel hands show the seconds, at the centre, and the date. The thermometer and date mechanism can be seen through an opening in the middle of the dial. The thermometer scale appears on a plate engraved with the inscription: Elementa suis propiis armis Victa (The elements vanquished by their own arms). The movement, which has a main-spring, is fitted with a pin-wheel escapement, a gridiron compensation pendulum with a thermometer, and an hour and half-hour bell locking-plate striking mechanism. The technical interest of this kind of regulator, with its pure, straight lines, clearly outweighs the decorative interest. It was particularly popular between 1790 and 1815. The inscription and the mask evoking the story of Perseus and the Gorgon reveal the period's interest in antiquity.