Columbia subject headings:
Engraving--19th century--Exhibitions.
Engraving--20th century--Exhibitions.
Harvard subject headings:
Engraving--19th century--Exhibitions.
Engraving--20th century--Exhibitions.
Prints--19th century--Exhibitions
Prints--20th century--Exhibitions
Prints--Private collections--Switzerland--Exhibitions.
Princeton subject headings: