Columbia subject headings:
Bismarck, Otto, Fürst von, 1815-1898--Portraits.
Harvard subject headings:
Bismarck, Otto, Fürst von, 1815-1898--Pictorial works.
Bismarck, Otto, Fürst von, 1815-1898--Portraits, caricatures, etc.
Princeton subject headings:
Bismarck, Otto, Fürst von, 1815-1898--Portraits, caricatures, etc.