Columbia subject headings:
Art museums--Acquisitions--Germany--Friedrichshafen--History--20th century--Exhibitions.
Art--Provenance--Research--History--20th century--Exhibitions.
Zeppelin-Museum--History.
Harvard subject headings:
Art museums--Acquisitions--Germany--Friedrichshafen--History--20th century--Exhibitions.
Art--Provenance--Research--History--20th century--Exhibitions.
Zeppelin-Museum--History.
Princeton subject headings:
Art museums--Acquisitions--Germany--Friedrichshafen--History--20th century--Exhibitions.
Art--Provenance--Research--History--20th century--Exhibitions.
Zeppelin-Museum--History.