Eugène Chevreul (1786-1889) and his son Henri (1819-1889)
Atelier Nadar, between 1875 and 1895
Nadar Studio reference album. Vol. 33, "Album Cards" series, demonstration print N° 6945
Positive photograph on albumen paper, from a glass negative, 14.5 x 10.5 cm.
BnF, Prints and Photographs Department, FT 4-NA-238 (19)
© Bibliothèque nationale de France
© BnF, Éditions multimédias, 2018