Columbia subject headings:
Biedermeier (Art)--Germany--Exhibitions.
Engel, Carl, 1817-1870--Exhibitions.
Harvard subject headings:
Engel, Carl Wilhelm Jakob, 1817-1870--Exhibitions.
Princeton subject headings:
Biedermeier (Art)--Germany--Exhibitions.
Engel, Carl Wilhelm Jakob, 1817-1870--Exhibitions.