Barometers Realm

Naudet was a barometer maker who founded his business in 1860 and was succeeded by Dourde & Cie. In 1864 he received a highly favourable report for his barometers from the Päais Observatory, while on 26 December 1868 he received the platinum medal of the Société d'Encouragement. Naudet & Pertuis was a barometer makers founded in 1860, succeeded by Pertuis & fils.