
Edward Penfield (American, 1866 - 1925)

Georges Gaudy (Belgian, 1872–1940)

Théophile Alexandre Steinlen (Swiss, 1859-1923)

Anonymous

R. Stab (French, 19th/20th century)

A. D. Blashfield (American, 19th/20th century)

Ernest Buval (French, 1839-1915)

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

Merck (French, 20th Century)

National Institutes of Health (American, 1887-)

Anonymous

Ernst Klimt (Austrian, 1864-1892)

Antonin-Marie Chatinière (French, 1828-1916)

Charles Arthur Cox (English, 1829–1901)

Hans Rudi Erdt (German, 1883 – 1918)

Laboratoires Charvoz (French, 20th Century)

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

Ottavio Rodella Tavio (Italian, 1864-1910)

Forbes Co. (American, 19th/20th Century)

Lith. F. Appel (French, 19th/20th century)

Anonymous

Henri Evenepoel (Belgian, 1872-1899)