Columbia subject headings:
Cliché-verre--Exhibitions.
Prints--19th century--Exhibitions.
Prints--20th century--Exhibitions.
Harvard subject headings:
Cliché-verre--Exhibitions.
Prints--19th century--Exhibitions
Prints--20th century--Exhibitions
Princeton subject headings:
Cliché-verre--Exhibitions.
Prints--19th century--Exhibitions.
Prints--20th century--Exhibitions.