
David Ericson (American, 1870-1946)

Anonymous

Eric Rohman (Swedish, 1891 - 1949)

Andrej Kováčik (Slovak, 1889-1953)

Frederick Henri Kay Henrion (German, 1914–1990)

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

Anonymous

Anonymous

Joan Llimona (Spanish, 1860-1926)

Russell, Morgan & Co. (American, 19th/20th century)

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

Edo Mulder (Dutch, 20th Century)

National Institutes of Health (American, 1887-)

Paul De Sémant (French, 1855-1915)

Henri Boulanger Gray (French, 1858-1924)

Ernest Haskell (American, 1876-1925)

Jules Chéret (French, 1836-1932)

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

Laboratoires Brisson (French, 20th Century)

Anonymous

Louis Rhead (American, 1857-1926)

Eric Rohman (Swedish, 1891 - 1949)

Antoni Wajwód (Polish, 1905-1944)

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

Lith. F. Appel (French, 19th/20th century)