Engaz is recorded by Tardy as having his workshop in the rue Helvétius, Paris from 1800-10 and them in the rue Sainte-Anne in 1820.
This pedestal-supported and veil-draped 'altar' clock is dedicated to Venus and celebrates Love's dominion. Its pillar of a pearl-wreathed and orb-capped obelisk is embellished with a bas-relief of Hymen's torch held by Cupid bearing aloft a globe borne by Venus's attendant Graces. The plinth tablets reveal festive putti preparing for a sacrifice at Love's altar. A clock of related model in bleu turquin marble, in the Louvre in Paris is illutrated in Tardy, French Clocks The World Over, Paris 1981, vol.II, fig 60.
An identical obelisk mantel clock is illustrated in P. Kjellberg, Encyclopédie de la Pendule Française du Moyen Age au XXe Siècle, Paris, 1997, p. 219.