Columbia subject headings:
Germany--Politics and government--1789-1900--Exhibitions.
Wagner, Richard, 1813-1883--Exhibitions.
Harvard subject headings:
Bundesarchiv (Germany)
Germany--Politics and government--1789-1900--Exhibitions.
Wagner, Richard, 1813-1883--Exhibitions.
Wagner, Richard, 1813-1883--Political and social views.
Princeton subject headings:
Germany--Politics and government--19th century--Exhibitions.
Wagner, Richard, 1813-1883--Exhibitions.