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

Laboratoires Crosnier (French, 20th Century)

Anonymous

Laboratoires Brisson (French, 20th Century)

National Institutes of Health (American, 1887-)

Imp. J. Minot (French, 19th/20th century)

Laboratoire Défébryl (French, 20th Century)

Ethel C Taylor (American, 19th Century)

Anonymous

Theo van Hoytema (Dutch, 1863-1917)

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

Laboratoires Charvoz (French, 20th Century)

Hans Unger (German, 1872 – 1936)

Mikuláš Galanda (Slovak, 1895 – 1938)

Dudley Hardy (English, 1867-1922)

Laboratoire Lobica (French, 20th Century)

Anonymous

Julius Klinger (Austrian, 1876 – 1942)

Theo van Hoytema (Dutch, 1863-1917)