Charles Marville: Fountain at St. Sulpice. c. 1851, Blanquart-Evrard salt print from waxed paper negative, on original lithographed mount., Illustrated: Jammes, Blanquart-Evrard et les Origines de L'Edition Photographique Française, , Paris 1981, # 324, there identified by artist. From the album Mélanges Photographiques, 1851. H1050j.