Columbia subject headings:
Art, English--Exhibitions.
Constable, John, 1776-1837--Exhibitions.
Lucas, David, 1802-1881.
Harvard subject headings:
Constable, John, 1776-1837--Exhibitions.
Lucas, David, 1802-1881--Exhibitions.
Mezzotint engraving, English--Exhibitions.
Mezzotint engraving--19th century--England--Exhibitions.
Princeton subject headings: