Josiah Emery Straight Lever Escapement Chronometer.
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Independent seconds movement, lateral lever escapement.
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Monthly and week calendar, with central seconds, verge escapement.
Straight lever escapement, quarter hour repeater
Movement with experimental lateral lever escapement in the Robin style.
Hour and quarter repeater with cylinder escapement.
Automatic winding with beating mass, perpetual monthly and weekly retrograde calendar, cylinder escapement.
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Straight lever escapement, registered on 30 September 1791, there is no information regarding the sale.
Central seconds, regulateur dial, cylinder escapement
Quarter and half quarter hour repeater with ruby cylinder escapement no. 255.
Montre de carrosse a repetition des quart et function de reveil sold to the count de Mercy Argentau on 09 June 1837 at the price of 620 FF, ancienne 1155 sold to Pierre de Salabert for the Marquise of Santa Cruz on 18 Floreal year 13 (08 May 1805) , at the price of 1,440 francs.
First generation French lever escapement movement
Sold to Son Excellence M. Achille Fould on 12 November 1860 for 950 FF. Presented to Professor Heinrich Siegel
Hour and quarter repeater, cylinder escapement, hunting case.