
National Institutes of Health (American, 1887-)

National Institutes of Health (American, 1887-)

National Institutes of Health (American, 1887-)

Maynard Dixon (American, 1875–1946)

Theo Nieuwenhuis (Dutch, 1866-1951)

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

Anonymous

Anonymous

Edward Penfield (American, 1866 - 1925)

Richard Bergh (Swedish, 1858–1919)

Anonymous

National Institutes of Health (American, 1887-)

Adolf Friedländer Lith. (German, 19th/20th century)

Eric Rohman (Swedish, 1891 - 1949)

Georges de Feure (French, 1868-1943)

Georges Fay (French, 1871-1916)

Laboratoires Robert & Carrière (French, 20th Century)

Laboratoires de l'Appétyl (French, 20th Century)