Columbia subject headings:
Florence (Italy)--Pictorial works--Exhibitions.
Tuscany (Italy)--Pictorial works--Exhibitions.
Harvard subject headings:
Architectural photography--Italy--Florence--History--19th century--Exhibitions.
Architectural photography--Italy--Tuscany--History--19th century--Exhibitions.
Florence (Italy)--Pictorial works--Exhibitions.
Siegert, Dietmar, 1943---Photograph collections--Exhibitions.
Tuscany (Italy)--Pictorial works--Exhibitions.
Princeton subject headings:
Florence (Italy)--Pictorial works--Exhibitions.
Tuscany (Italy)--Pictorial works--Exhibitions.