U.S. Information Agency (American, 1953-1999)
Georges Meunier (French, 1869-1942)
Anonymous
Anonymous
Carel Adolph Lion Cachet (Dutch, 1864 – 1945)
Elisha Brown Bird (American, 1867 - 1943)
Charles Lucas (French, 1871 - 1930)
DAPX (American, 19th/20th Century)
Robert Muchley (American, 1920-)
Ottavio Rodella Tavio (Italian, 1864-1910)
Anonymous
Clinton Balmer (American, 1879–after 1921)
E Oliver (English, 20th Century)
Joan Llaverias (Spanish, 1865 - 1938)
Anonymous
Etienne Moreau-Nélaton (French, 1859-1927)
National Institutes of Health (American, 1887-)
Archie Gunn (American, 1863 - 1930)
Anonymous
A.W.B. Lincoln (American, 19th/20th Century)
Eric Rohman (Swedish, 1891 - 1949)