Columbia subject headings:
Artists' models--Germany--Berlin--19th century.
Artists--Germany--Berlin--19th century.
Graef, Gustav.
Nude in art--19th century.
Rother, Bertha.
Harvard subject headings:
Artists' models--Germany--Berlin--19th century.
Artists--Germany--Berlin--19th century.
Graef, Gustav, 1821-1895.
Nude in art--19th century.
Rother, Bertha.
Princeton subject headings:
Artists' models--Germany--Berlin--19th century.
Artists--Germany--Berlin--19th century.
Graef, Gustav, 1821-1895.
Nude in art--19th century.
Rother, Bertha.