Columbia subject headings:
Architectural drawing--Italy--18th century.
Piermarini, Giuseppe, 1734-1808--Notebooks, sketchbooks, etc.
Harvard subject headings:
Architectural drawing
Architecture--Italy--Designs and plans.
Piermarini, Giuseppe, 1734-1808--Manuscripts.
Princeton subject headings:
Architectural drawing.
Architecture--Italy--Designs and plans.
Piermarini, Giuseppe, 1734-1808--Manuscripts.