“Club footed” verge escapement.
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Hour and quarter repeater with verge escapement
“Resilient lever” lever escapement modified by Mortimer George Cole.
Cylinder escapement, quarter hour repeater.
Josiah Emery Straight Lever Escapement Chronometer.
Montre simple a deux aguilles a secondes sien 140 boite en or n.2429 envoyé a Melin de Londres en cadeau pour le prix de 1030 FF le 11 mai 1821. (la n.140 Montre simple à secondes, boîte d’or Vendue le 9 frimaire an 5 (29 novembre 1796) à Monsieur Lavillete 576 FF.)
Turkish market watch, hour and quarter repeater with ruby cylinder escapement, translucent red enamel case, sold to Leroy in Constantinople for 2,400 FF (Breguet agent).
Movement with particular Pouzait lever escapement, quarter hour repeater
“Montre de souscription” with verge escapement.
Finished by son Pierre Le Roy, Sully escapement, calendar.
« Simple garde-temps, arbre percé 20 lignes échappement ancre” sold to Monsieur de Bignon 11 March 1858.
“Repètition dix minutes aux deux styles à volontè a heur sautants” with ruby cylinder escapement and parachute, sent “au freres Chaudoir”, 29 Pluviose an 10 (18 February 1802), revised at the request of Monsieur Mazeau in 1828.
“Montre de souscription”.
“Rèpètition à minutes” chronometer with double-wheel duplex escapement, sold to the Spanish Princes in Valençay on 29 May 1809 for the price of 2,400 F.
Scappamento ad ancora e compensazione termica
Dead seconds watch with duplex lever escapement by Jean Renaud