Columbia subject headings:
Art Gallery of Ontario--Catalogs.
Art objects--Ontario--Toronto--Catalogs.
Art, Byzantine--Catalogs.
Art, Medieval--Catalogs.
Ivories, Medieval--Catalogs.
Ivories--Ontario--Toronto--Catalogs.
Thomson, Ken, 1923-2006--Art collections--Catalogs.
Harvard subject headings:
Art Gallery of Ontario--Catalogs.
Ivories, Medieval--Catalogs.
Ivories--Ontario--Toronto--Catalogs.
Thomson, Ken, 1923-2006--Art collections--Catalogs.
Princeton subject headings:
Art Gallery of Ontario--Catalogs.
Art objects--Ontario--Toronto--Catalogs.
Art, Byzantine--Catalogs.
Art, Medieval--Catalogs.
Catalogs.
Ivories, Medieval--Catalogs.
Ivories--Ontario--Toronto--Catalogs.
Thomson, Ken, 1923-2006--Art collections--Catalogs.