Columbia subject headings:
Freemasonry in art--Exhibitions.
Freemasonry--Switzerland--Fribourg--History--Exhibitions.
Freemasonry--Switzerland--History--Exhibitions.
Harvard subject headings:
Freemasonry in art--Exhibitions.
Freemasonry--Switzerland--Fribourg--History--Exhibitions.
Freemasonry--Switzerland--History--Exhibitions.
Princeton subject headings: