Columbia subject headings:
Harvard subject headings:
Architecture, Medieval--Italy--Tuscany.
Baptisteries--Italy--Tuscany--History.
Church decoration and ornament--Italy--Tuscany.
Fonts--Italy--Tuscany--History.
Princeton subject headings:
Architecture, Medieval--Italy--Tuscany.
Art, Medieval--Italy--Tuscany.
Baptisteries--Italy--Tuscany--History.
Fonts--Italy--Tuscany--History.