Columbia subject headings:
Architects--Germany--Berlin--Exhibitions.
Architecture--Germany--Berlin--Exhibitions.
Architecture--Germany--Berlin--History--20th century--Exhibitions.
Berlin (Germany)--Buildings, structures, etc.--Exhibitions.
Knoblauch, Arnold, 1879-1963--Exhibitions.
Knoblauch, Eduard, 1801-1865--Exhibitions.
Knoblauch, Gustav, 1833-1916--Exhibitions.
Harvard subject headings:
Architects--Germany--Biography--Exhibitions.
Architecture, German--Germany--Berlin--Exhibitions.
Architecture, Modern--19th century--Germany--Berlin--Exhibitions.
Architecture, Modern--20th century--Germany--Berlin--Exhibitions.
Berlin (Germany)--Buildings, structures, etc.
Knoblock family--Exhibitions.
Princeton subject headings: