
Edward H. Pfeiffer (American, 1868-1932)

Anonymous

Anonymous

Othar Holmboe (Norwegian, 1868-1928)

Roger de Valerio (French, 1896-1951)

Anonymous

Anonymous

Anonymous

Anonymous

Anonymous

Laboratoires Biosedra (French, 20th Century)

A. Shaw (American, 19th Century)

Rotophot (German, 19th/20th century)

Anonymous

Julius Klinger (Austrian, 1876 – 1942)

Eric Rohman (Swedish, 1891 - 1949)

Vera Bock (American, 1905 - 1973)

Leslie Ragan (American, 1897-1972)

Anonymous

Albin Egger Lienz (Austrian, 1868 – 1926)