
Laboratoires Plé (French, 20th Century)

Arlington Gregg (American, 1909 - 1964)

Shober & Carqueville (American, 19th/20th Century)

Laboratoires Chatelut (French, 20th Century)

Ronald McLeod (American, 1897 - 1977)

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

Edward Penfield (American, 1866 - 1925)

Strobridge & Co. Lith. (American, 1847 -)

George Reiter Brill (American, 1867 - 1918)

Laboratoires Biosedra (French, 20th Century)

Anonymous

Anonymous

J. F. Butler (American, 19th/20th century)

Julius Klinger (Austrian, 1876 – 1942)

Imp. F. Champenois (French, 19th/20th century)

Wasyl Masjutyn (German, 1884-1955)

National Institutes of Health (American, 1887-)

Jolijn van de Wouw (Dutch, 1942-2001)

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

Angelika Hoerle (German, 1899-1923)

Anonymous

Eric Rohman (Swedish, 1891 - 1949)