| Maxime Du Camp Nubie. Ibsamboul. Entrée du Spéos d'Hathor 1850 Salted paper print (Blanquart-Évrard process) from paper negative Metropolitan Museum of Art Robert O. Dougan Collection, Gift of Warner Communications Inc., 1981, Accession Number: 1981.1229.6.22 LL/69384 Printer: Imprimerie photographique de Blanquart-Évrard, à Lille (French, active 1851–55).
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