Columbia subject headings:
Art, Modern--Themes, motives--Exhibitions.
Balzac, Honoré de, 1799-1850. Chef-d'oeuvre inconnu--Exhibitions.
Harvard subject headings:
Art, Modern--Themes, motives--Exhibitions.
Balzac, Honoré de, 1799-1850. Chef d'œuvre inconnu--Exhibitions.
Princeton subject headings:
Art, Abstract.
Balzac, Honoré de, 1799-1850--Knowledge--Art--Exhibitions.
Balzac, Honoré de, 1799-1850. Chef-d'oeuvre inconnu--Exhibitions.
Masterpiece, Artistic--Exhibitions.