Columbia subject headings:
Painting--Copying--History--18th century.
Painting--Copying--History--19th century.
Harvard subject headings:
Painting, European--18th century.
Painting, European--19th century
Painting, Italian--Copying.
Painting--Study and teaching--History--18th century.
Painting--Study and teaching--History--19th century.
Princeton subject headings:
Painting--Copying--History--18th century.
Painting--Copying--History--19th century.