Gustave Le Gray (1820-1884) Religious, c. 1860. Print on salted-aluminum paper, mounted on cardboard. Signature of the photographer in the lower right corner of the image. 26 x 19.7 cmProvenance : archives of the architect Charles Genuys. Gustave Le Gray (1820-1884) Religious, c. 1860. Albuminized salt print, mounted on cardboard. Photographer's signature in the lower right corner of the image. 26 x 19.7 cm