Columbia subject headings:
Harvard subject headings:
Gem carving--Exhibitions.
Gems, Classical--Exhibitions.
Glyptics--Exhibitions.
Princeton subject headings:
Gem carving--Private collections--Switzerland--Exhibitions.
Glyptics--Private collections--Switzerland--Exhibiitons.
Merz, Leo, 1869-1952--Art collections--Exhibitions.
Universität Bern. Institut für Klassische Archäologie--Exhibitions.