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unknown - Public Domain
not stated - Public Domain
Robert Cornelius - Public Domain
film screenshot (United Artists) - Public Domain
Anonymous -
Почта России: - Public Domain
Henry Coelas - CC BY-SA 3.0
anonymous -
- - Public Domain
Robin & Lucienne Day Foundation - CC BY-SA 4.0
Author - Public Domain
Public Domain
*:File:Asad Ali Khan 2009.jpg - CC BY-SA 4.0
Mathew Brady Levin Corot Handy - Public Domain
David Shankbone - CC BY-SA 3.0
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Malik, Jacob, 1906-1980
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unknown - Public Domain
Savage, Arthur, 1857-1941
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Kirkpatrick, Ivone, Sir, 1897-1964
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not stated - Public Domain
Paul, C. Kegan (Charles Kegan), 1828-1902
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not stated - Public Domain
Chatfield-Taylor, H. C. (Hobart Chatfield), 1865-1945
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Robbins, Jerome
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Robert Cornelius - Public Domain
Cornelius, Robert, 1809-1893
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Lascelles, William Saunders Sebright, 1798-1851
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Skene, Alexander J. C. (Alexander Johnston Chalmers), 1838-1900
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film screenshot (United Artists) - Public Domain
Cochran, Steve, 1917-1965
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Anonymous -
Halecki, Oskar, 1891-1973
Image from Wikimedia Commons
Почта России: - Public Domain
Kheĭfit︠s︡, Iosif, 1905-1995
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Henry Coelas - CC BY-SA 3.0
Oustalet, Émile (Jean-Frédéric Émile), 1844-1905
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anonymous -
Antoniade, Constantin, 1880-1954
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Thomas, Elmer, 1876-1965
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- - Public Domain
Mendeleyev, Dmitry Ivanovich, 1834-1907
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Robin & Lucienne Day Foundation - CC BY-SA 4.0
Day, Robin, 1915-2010
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Berhanyer, Elio
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Author - Public Domain
William IX, Duke of Aquitaine, 1071-1127
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Public Domain
Matsunaga, Spark M. (Spark Masayuki), 1916-1990
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Glass, Philip
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Margrethe II, Queen of Denmark, 1940-
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*:File:Asad Ali Khan 2009.jpg - CC BY-SA 4.0
Khan, Asad Ali, 1937-2011
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Mathew Brady Levin Corot Handy - Public Domain
Richmond, Hiram L. (Hiram Lawton), 1810-1885
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Public Domain
Gallone, Carmine, 1886-1973
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not stated - Public Domain
Blackburn, Maurice, 1880-1944
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Wood, Robert, 1717?-1771
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David Shankbone - CC BY-SA 3.0
Ben Ari, Miri
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Public Domain
Hasson, Esther Voorhees, 1867-1942
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Hyvernat, Henri, 1858-1941