Jules Janssen, director of the Meudon observatory
Atelier Nadar, between 1875 and 1895
Nadar Studio reference album. Vol. 29, "Album Cards" series, demonstration print N° 342
Positive photograph on albumen paper, from a glass negative, 14.5 x 10.5 cm.
BnF, Prints and Photographs Department, FT 4-NA-238 (7)
© Bibliothèque nationale de France
© BnF, Éditions multimédias, 2018