Columbia subject headings:
Berlin (Germany)--Social conditions--Pictorial works--Exhibitions.
Portrait photography--Germany--Berlin--Exhibitions.
Harvard subject headings:
Arts--Germany--Berlin--20th century--Exhibitions.
Berlin (Germany)--Pictorial works--Exhibitions.
Berlin (Germany)--Social conditions--Pictorial works--Exhibitions.
Berlin (Germany)--Social life and customs--Pictorial works--Exhibitions.
Photography, Artistic--Exhibitions
Photography, Artistic.
Photography--Germany--Berlin--History--20th century--Exhibitions.
Portrait photography--Germany--Berlin--Exhibitions.
Princeton subject headings:
Berlin (Germany)--Pictorial works--Exhibitions.
Berlin (Germany)--Social conditions--Pictorial works--Exhibitions.
Photography, Artistic.
Portrait photography--Germany--Berlin--Exhibitions.