U.S. Information Agency (American, 1953-1999)
Leo Visser (Dutch, 1880-1950)
National Institutes of Health (American, 1887-)
Thomas Tryon (American, 19th/20th Century)
Anonymous
Anonymous
Eric Rohman (Swedish, 1891 - 1949)
Jupp Wiertz (German, 1881-1939)
Anonymous
James Allen St. John (American, 1872-1957)
Anonymous
Anonymous
Sam Maitin (American, 1928 - 2004)
Anonymous
National Institutes of Health (American, 1887-)
Anonymous
Anonymous
Anonymous
Henri de Toulouse-Lautrec (French, 1864-1901)
National Institutes of Health (American, 1887-)
Anonymous
Angelika Hoerle (German, 1899-1923)
Henri C. R. Presseq (French, 19th Century)
Boris Lurie (American, 1924-2008)
Anonymous