Set of works on the Breguet family including a book by E. Fe - Lot 118

Set of works on the Breguet family including a book by E. Ferret entitled "Les BREGUET" dedicated to the Breguet family: Abraham-Louis Breguet (1747-1823) # Louis-Antoine Breguet (1776-1858) # Louis-François Breguet (1804-1883) # Antoine Breguet (1851-1882). Enclosed is a typewritten document entitled "AL BREGUET 1747-1823", black and white archival photos of milestone clocks with calendars, an Art Deco model clock, and duplicate drawings of electric clocks and watch mechanisms from Breguet Neveu & Cie, but also these black-and-white photographic plates reproducing both a drawing of the tourbillon mechanism, patented on 7 Messidor An IX (June 26, 1801), and the patent for the constant-force escapement, applied to watches.