Columbia subject headings:
Artists--Czechoslovakia--Correspondence.
Orlik, Emil, 1870-1932.
Harvard subject headings:
Artists--Germany--Correspondence.
Lehrs, Max, 1855-1938.
Orlik, Emil, 1870-1932.
Princeton subject headings:
Artists--Czechoslovakia--Correspondence.
Orlik, Emil, 1870-1932.