
Don Madden (American, 20th Century)

Anonymous

U.S. Lithograph Co. (American, 19th/20th Century)

Anonymous

Akseli Gallen-Kallela (Finnish, 1865 - 1931)

Julius Klinger (Austrian, 1876 – 1942)

Anonymous

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

Eric Rohman (Swedish, 1891 - 1949)

Anonymous

François Cachoud (French, 1866-1943)

Jean d'Ylen (French, 1886-1938)

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

Louis Frederick Hurd (American, 1853-1904)

Gray Litho. Co (American, 19th/20th Century)

National Institutes of Health (American, 1887-)

Theo Nieuwenhuis (Dutch, 1866-1951)

Laboratoires du Serobiol (French, 20th Century)

Fritz Rehm (German, 1871-1928)

Anonymous

Maxfield Parrish (American, 1870 - 1966)

Raymond Gloeckler (American, 1928 -)

Léon Lebègue (French, 1863-1944)

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