Columbia subject headings:
Oppé, A. P. (Adolf Paul), 1878-1957--Art collections.
Tate Gallery--Catalogs.
Watercolor painting, British--18th century--Exhibitions.
Watercolor painting, British--Exhibitions.
Harvard subject headings:
Artists' preparatory studies--Great Britain--Exhibitions.
Drawing, British--Exhibitions.
Drawing--18th century--Great Britain--Exhibitions.
Drawing--19th century--Great Britain--Exhibitions.
Oppé, A. P. (Adolf Paul), 1878-1957--Art collections--Exhibitions.
Oppé, A. P. (Adolf Paul), 1878-1957--Art collections.
Tate Gallery--Catalogs.
Watercolor painting, British--Exhibitions.
Watercolor painting--18th century--Great Britain--Exhibitions.
Watercolor painting--19th century--Great Britain--Exhibitions.
Watercolor painting--Great Britain--18th century--Exhibitions.
Princeton subject headings: