Columbia subject headings:
Building stones--Italy--Florence--Early works to 1800.
Decoration and ornament, Architectural--Italy--Florence--Early works to 1800.
Precious stones--Italy--Florence--Early works to 1800.
Stone carving--Italy--Florence--Early works to 1800.
Harvard subject headings:
Building stones--Italy--Florence--Early works to 1800.
Decoration and ornament, Architectural--Italy--Florence--Early works to 1800.
Precious stones--Italy--Florence--Early works to 1800.
Stone carving--Italy--Florence--Early works to 1800.
Princeton subject headings:
Gems--Early works to 1800.
Mineralogy--Early works to 1800.
Petrology--Early works to 1800.
Precious stones--Early works to 1800.