
Anonymous

National Institutes of Health (American, 1887-)

Leonetto Cappiello (Italian, 1875-1942)

Hans Rudi Erdt (German, 1883 – 1918)

Maxfield Parrish (American, 1870 - 1966)

Anonymous

Laboratoire Marinier (French, 20th Century)

Anonymous

Leo Prochownik (German, 1875-1936)

Anonymous

Joseph Gould (American, 1880 - 1935)

Joseph Pennell (American, 1857-1926)

Alfred Choubrac (French, 1853-1902)

Anonymous

Emil Biorn (Norwegian, 1864 – 1935)

Anonymous

Anonymous

George M. Reevs (American, 1864-1930)

Imp. Emile Lévy (French, 19th/20th century)

Corwin Knapp Linson (American, 1864–1959)

Otto Plattner (Swiss, 1886-1951)

Anonymous

Anonymous

Laboratoires Féminadène (French, 20th Century)

Hughes & Johnson Lith. (American, 19th/20th Century)