Columbia subject headings:
Harvard subject headings:
Italy--History--Allied occupation, 1943-1947.
Postal service--Italy--Sicily--History.
Sicily (Italy)--History--1870-1945
World War, 1939-1945--Italy--Sicily--Postal service.
Princeton subject headings:
Italy--History--Allied occupation, 1943-1947.
Postal service--Italy--Sicily--History.
World War, 1939-1945--Postal service.