National Institutes of Health (American, 1887-)
Anonymous
Michael P. Whelan (American, 19th/20th Century)
Anonymous
S. Broder (American, 20th Century)
Leonetto Cappiello (Italian, 1875-1942)
Eric Rohman (Swedish, 1891 - 1949)
Anonymous
Anonymous
U.S. Lithograph Co. (American, 19th/20th Century)
U.S. Lithograph Co. (American, 19th/20th Century)
Winold Reiss (American, 1886-1953)
Georges de Feure (French, 1868-1943)
Anonymous
Frederick Richardson (American, 1862-1937)
Albert Wilfred Barbelle (American, 1887–1957)
National Institutes of Health (American, 1887-)
Anonymous
Anonymous
Edward Penfield (American, 1866 - 1925)
Edward Penfield (American, 1866 - 1925)
NASA (American, 1958 -)
Anonymous