Columbia subject headings:
Painting--Copying--Exhibitions.
Painting--Germany--Aachen--Exhibitions.
Painting--Private collections--Germany--Aachen--Exhibitions.
Reiff, Franz, 1835-1902--Art collections--Exhibitions.
Reiff-Museum Aachen--Exhibitions.
Harvard subject headings:
Painting--Copying--Exhibitions.
Painting--Germany--Aachen--Exhibitions.
Painting--Private collections--Germany--Aachen--Exhibitions.
Reiff, Franz, 1835-1902--Art collections--Exhibitions.
Reiff-Museum Aachen--Exhibitions.
Princeton subject headings:
Painting--Copying--Exhibitions.
Painting--Reproduction--History--Exhibitions.
Reiff-Museum Aachen--Exhibitions.