
U.S. Information Agency (American, 1953-1999)

Leonida Edel (Italian, 1864-1940)

Thorolf Holmboe (Norwegian, 1866–1935)

Frederic Hugo d’Alési (French, 1849-1906)

Laboratoire d'actino-biologie (French, 20th Century)

Ethel C Taylor (American, 19th Century)

Eric Aldwinckle (Canadian, 1909-1980)

Laboratoires Mayoly-Spindler (French, 20th Century)

Fritz Rumpf (German, 1856-1927)

Hennegan & Co. (American, 19th/20th Century)

Akseli Gallen-Kallela (Finnish, 1865 - 1931)

Anonymous

Louis Anquetin (French, 1861 - 1932)

Anonymous

Howard Zieff (American, 20th Century)

NASA (American, 1958 -)

Laboratoires Charvoz (French, 20th Century)

Sándor Benkő (Hungarian, 1922 - 2007)

Harold Forster (English, 19th/20th Century)

Julius Klinger (Austrian, 1876 – 1942)

Ernest Haskell (American, 1876-1925)