Thematic Auction in Geneva:The Evolut...
Hotel Noga Hilton, Geneva, Nov 16, 2002
Two in-quarto pages, in the handwriting of Bre-guet's son, intitled "Description matériel-le de l'horloge astronomique à pendule", with many calculations.
C. This description was destined for the famous "Traité d'Horlogerie" that Abraham-Louis Bre-guet worked on along with his son and Moinet, and which was never completed.