Columbia subject headings:
Italy--History--1815-1870--Exhibitions.
Italy--History--1815-1870--Pictorial works.
Photography--Italy--History--19th century--Exhibitions.
Harvard subject headings:
Italy--History--1815-1870--Exhibitions.
Italy--History--1815-1870--Pictorial works.
Photography--Italy--History--19th century--Exhibitions.
Princeton subject headings:
Italy--History--1849-1870--Pictorial works--Exhibitions.