The members of the Astronomical Congress
Atelier Nadar, between 1875 and 1895
Nadar Studio reference album. Vol. 30, "Album Cards" series, demonstration print N° 5613
Positive photograph on albumen paper, from a glass negative, 10.5 x 14.5 cm.
BnF, Prints and Photographs Department, FT 4-NA-238 (16)
© Bibliothèque nationale de France
© BnF, Éditions multimédias, 2018