ALEXANDRE-CHARLES DE MONTGOLFIER (1737-1794) Letter signed in his capacity as councillor of the sénéchaussée du Haut-Vivarais,
countersigned in the same capacity by 5 other people, addressed to Mr Gaillard, also a councillor of this sénéchaussée. S.l.n.d. 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 Montgolfi er was also passionate about science: he tried to make hydrogen and thought about aerostation.