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unknown - Public Domain
Philip-Jan Kohnstamm - CC BY-SA 3.0
Lironcareto - CC BY-SA 3.0
original uploader - Public Domain
Robert White (engraver) - Public Domain
Harald Rossa - CC BY-SA 3.0
Bureau of Industrial Service. This was a division of ad agency Young & Rubicam which was widely used by those in the television industry to distribute publicity material. - Public Domain
Randandme - CC BY-SA 4.0
U.S. Army Signal Corps - Public Domain
Pegasuscbba - Public Domain
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Baker, Jehu, 1822-1903
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unknown - Public Domain
Williamson, R. M. (Robert McAlpin), 1804-1859
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Loud, E. F. (Eugene Francis), 1847-1908
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unknown - Public Domain
Duca, I. G. (Ion George), 1879-1933
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Philip-Jan Kohnstamm - CC BY-SA 3.0
Kohnstamm, Max, 1914-2010
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O'Neill, Dennis.
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Lironcareto - CC BY-SA 3.0
Barreda Fontes, José María
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Gilpin, Charles, 1815-1874
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Hunter, Glen, 1897-1945
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original uploader - Public Domain
Melville, Andrew, 1545-1622
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Goodyear, Charles, 1800-1860
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Robert White (engraver) - Public Domain
Levinz, Creswell, Sir, 1627-1701
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Amado, Jorge, 1912-2001
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Harald Rossa - CC BY-SA 3.0
Thietmar, von Merseburg, Bishop of Merseburg, 975-1018
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Bureau of Industrial Service. This was a division of ad agency Young & Rubicam which was widely used by those in the television industry to distribute publicity material. - Public Domain
Keim, Betty Lou
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Evans, George, 1870-1915
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Fisk, Carlton, 1947-
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Planché, J. R. (James Robinson), 1796-1880
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Randandme - CC BY-SA 4.0
Davies, Merton E.
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Bourne, S. R., 1944-
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U.S. Army Signal Corps - Public Domain
Cummings, Emerson L. (Emerson Leroy), 1902-
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Palmer, D. D. (Daniel David), 1845-1913
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Bradley, Will
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Casaubon, Isaac, 1559-1614
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Ben Bella, Ahmed
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Cole, Cyrenus, 1863-1939
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Pegasuscbba - Public Domain
Quiroga Santa Cruz, Marcelo, 1931-1980
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Stoddart, J. F.
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unknown - Public Domain
Hall, Adelaide
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Sharpey, William, 1802-1880