Columbia subject headings:
Architectural drawing--Italy--19th century--Exhibitions.
Architecture--Study and teaching--Italy--Turin--History--19th century--Exhibitions.
Promis, Carlo, 1808-1872--Exhibitions.
Harvard subject headings:
Architectural drawing--Italy--19th century--Exhibitions.
Architecture--Study and teaching--Italy--Turin--History--19th century--Exhibitions.
Promis, Carlo, 1808-1872--Exhibitions.
Princeton subject headings:
Promis, Carlo, 1808-1872--Exhibitions.