Anonymous
Beverly Pick (English, 20th Century)
Florence Lundborg (American, 1871-1949)
Anonymous
O'Connell (English, 20th Century)
Gustave Fraipont (French, 1849 - 1923)
Leonetto Cappiello (Italian, 1875-1942)
National Institutes of Health (American, 1887-)
Eric Rohman (Swedish, 1891 - 1949)
U.S. Information Agency (American, 1953-1999)
Anonymous
William Nicholson (English, 1872-1949)
Springer Litho. Co. (American, 19th/20th Century)
Reinier Willem Petrus de Vries (Dutch, 1874 - 1952)
Maurice Réalier-Dumas (French, 1860–1928)
Boris Artzybasheff (Russian, 1899-1965)
Patricq Kroon (Dutch, 1862-1941)
Ricky RCAF (Canadian, 20th Century)
Anonymous
Clémentine Hélène Dufau (French, 1869-1937)
Anonymous
Leslie J. Trevor (Canadian, 20th Century)
Strobridge and Co (American, 1910-1954)