Columbia subject headings:
Drawing--Catalogs.
Engraving--Catalogs.
Firmin-Didot, Ambroise, 1790-1876.
Portraits--Catalogs.
Harvard subject headings:
Drawing--Catalogs
Engraving--Catalogs.
Firmin-Didot, Ambroise, 1790-1876
Portraits--Catalogs
Princeton subject headings:
Catalogs.
Drawing--Catalogs.
Engraving--Catalogs.
Portraits--Catalogs.