An Empire gilt-bronze candlestick with a mechanism

A gilt-bronze candlestick with a mechanism. The tapered stem, adorned with a lion's head with, is held in a circular basin-shaped base. An automatic snuffer engraved with the words 'Bonne Nuit' slides on a vertical axis.
This candlestick functions as a night light. By first adjusting the height at which the mechanism is positioned on the vertical slide and the length of the candle one wishes to burn, the candle burns until the automatic snuffer is triggered, and falls onto the flame to extinguish it.
Henry René d'Allemagne, in his "Histoire du luminaire depuis l'Antiquité jusqu'au XIXe siècle", mentions these ingenious candlesticks with an automatic snuffer, which were found at the Petit-Dunkerque, the famous shop of the Parisian marchand mercier Charles Raymond Grancher, established Rue de Richelieu between 1789 and 1813.