Citation
"Duc D'Aumale [Henri Eugène Philippe Louis d'Orléans, duc d'Aumale (1822-1897)] (Eugène Appert)(Published by Ludovic Baschet)(Printed by Goupil et Cie) , P1982.111.1,” Harvard Art Museums collections online, Dec 22, 2024, https://hvrd.art/o/100395.