Columbia subject headings:
Half-open door in art--Rome.
Relief (Sculpture)--Rome.
Sepulchral monuments--Rome.
Symbolism in art--Rome.
Harvard subject headings:
Relief (Sculpture)--Rome.
Sepulchral monuments--Rome.
Symbolism in art--Rome.
Princeton subject headings:
Half-open door in art--Rome.
Relief (Sculpture)--Rome.
Sepulchral monuments--Rome.
Symbolism in art--Rome.