Nicolas Thomas became a master clockmaker in 1778 ; he also held the title of Clockmaker to the King. Three years later he was recorded at rue du Bac ; in 1789 at rue de l’Echelle ; and finally at rue de Gretry in 1806. Thomas married the daughter of clockmaker Pierre Millot. He made the movement for a clock with a case made by François Rémond after a model by Louis-Simon Boizot, representing Study and Philosophy and a dial by Dubuisson ; a later Empire clock with case by Claude Galle depicting Apollo (illustrated in Pierre Kjellberg, Encyclopédie de la Pendule Française du Moyen Age au XXe Siècle, 1997, pp. 261 and 404, pl. B).