Columbia subject headings:
Kolbe, Georg, 1877-1947--Correspondence.
Sculptors--Germany--Correspondence.
Harvard subject headings:
Kolbe, Georg, 1877-1947--Correspondence.
Kolbe, Georg, 1877-1947.
Sculptors--Germany--Correspondence.
Princeton subject headings:
Kolbe, Georg, 1877-1947--Correspondence.
Sculptors--Germany--Correspondence.