Columbia subject headings:
Harvard subject headings:
Painters--Finland--Correspondence.
Painting, Finnish--20th century.
Schjerfbeck, Helene, 1862-1946--Correspondence.
Wiik, Maria--Correspondence.
Princeton subject headings:
Artists--Finland--Correspondence.
Schjerfbeck, Helene, 1862-1946--Correspondence.
Wiik, Maria, 1853-1928--Correspondence.