Antonin P. Provost: Route Imperiale N. 119, Carcassone to St.-Girois, looking out. 1866, Albumen print from wet collodion negative, 15-5/16 x 11 in. (390 x 280 mm), on original lithographed mount., Another plate from: Travaux de rectification des cotes de baudet, par la grotte naturelle de l'Arize ou du Mas-d'Azil. M2112.

Antonin P. Provost: Route Imperiale N. 119, Carcassone to St.-Girois, views of the cavern and road. 1866, Albumen print from wet collodion negative, 14-15/16 x 11 in. (380 x 280 mm), on original lithographed mount., One of six plates from: "Travaux de rectification des cotes de baudet, par la grotte naturelle de l'Arize ou du Mas-d'Azil". Commissioned for the Exposition Universelle de Paris en 1867; included in the folio are two cavern views, two views of the entrance/ exits, and two copies of maps of elevations and construction details etc. M2111.