Anonymous
Anonymous
Lloyd Harrison (American, 19th/20th Century)
Eric Rohman (Swedish, 1891 - 1949)
Anonymous
National Institutes of Health (American, 1887-)
Theo van Hoytema (Dutch, 1863-1917)
National Institutes of Health (American, 1887-)
Anonymous
Anonymous
Nancy C. Pokross (American, 20th century)
Árpád Basch (Hungarian, 1873- 1944)
Ramón Casas (Spanish, 1866 – 1932)
Ethel Reed (American, 1874 - 1900)
Edward Penfield (American, 1866 - 1925)
Leonetto Cappiello (Italian, 1875-1942)
Joseph Gould (American, 1880 - 1935)
Anonymous
NASA (American, 1958 -)
Anonymous
Remington W. Lane (American, 19th Century)
R.H. Rodda (American, 19th/20th Century)
Leo Gestel (Dutch, 1881- 1941)
U.S. Information Agency (American, 1953-1999)