Columbia subject headings:
Symbolism in art--Italy--Tuscany--Congresses.
Symbolism--Congresses.
Harvard subject headings:
Symbolism in art--Italy--Tuscany--Congresses.
Symbolism--Congresses.
Tuscany (Italy)--Civilization--Congresses.
Princeton subject headings:
Arts, Renaissance--Italy--Tuscany--Congresses.
Italy--Civilization--1268-1559--Congresses.
Renaissance--Italy--Tuscany--Congresses.
Secrecy in art--History--Congresses.
Tuscany (Italy)--Civilization--History--Congresses.