Columbia subject headings:
Cameos, Classical--Rome.
Gems, Classical--Rome.
Glyptics--Rome.
Portraits on gems.
Harvard subject headings:
Cameos, Classical--Rome.
Gems, Classical--Rome.
Glyptics--Rome.
Portraits on gems.
Princeton subject headings:
Cameos, Classical--Rome.
Gems, Classical--Rome.
Glyptics--Rome.
Portraits on gems.