Columbia subject headings:
Herschel, John F. W. (John Frederick William), 1792-1871.
Nash, Graham--Art collections.
Harvard subject headings:
Camera lucida.
Camera lucidas.
Drawing--Private collections--England--Catalogs.
Herschel, John F. W. (John Frederick William), 1792-1871--Catalogs.
Nash, Graham--Art collections--Catalogs.
Princeton subject headings:
Herschel, John F. W. (John Frederick William), 1792-1871.
Nash, Graham, 1942---Art collections--Catalogs.