Columbia subject headings:
Art--France--Marketing--Congresses.
Art--Private collections--France--Congresses.
Auctions--France--History--Congresses.
Harvard subject headings:
Art and society--France--Congresses.
Art--Collectors and collecting--France--History--18th century--Congresses.
Art--Collectors and collecting--France--History--19th century--Congresses.
Art--France--Marketing--History--18th century--Congresses.
Art--France--Marketing--History--19th century--Congresses.
Princeton subject headings:
Art--France--Marketing--Congresses.
Art--Private collections--France--Congresses.
Auctions--France--History--Congresses.