Columbia subject headings:
Harvard subject headings:
Metz (France)--Buildings, structures, etc.--Pictorial works.
Metz (France)--History--Pictorial works.
Postcards--France--Metz.
Princeton subject headings:
Metz (France)--Buildings, structures, etc.--Pictorial works.
Metz (France)--Description and travel.
Postcards--France--Metz.