ALEXANDRE-CHARLES DE MONTGOLFIER (1737- 1794) Letter signed in his capacity as counsellor of the seneschalty of Haut-Vivarais,
countersigned in the same capacity by 5 other people, addressed to Mr Gaillard, also a counsellor of this seneschalty. 2 pp. in-4, address on the back with red wax stamp. Tear in the address sheet due to opening without damaging the text. Brother of the inventors Joseph and Etienne, Canon Alexandre Charles de Montgolfier was also passionate about science: he tried to make hydrogen and thought about aerostation.