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unknown photographer -
US Army Signal Corps - Public Domain
Public Domain
ISPMB -
Membeth - CC0 1.0
Jorge ga - CC BY-SA 4.0
RobertoTenore - CC BY-SA 3.0
zeitgenössischer Maler - Public Domain
Perry, WIlliam Stevens - Public Domain
Lindsayfox - Public Domain
Tailok - Public Domain
unknown, upload by Parpan05 - Public Domain
Firmin Massot - Public Domain
E. White, N.Y. - Public Domain
(Photo by Air Force Master Sgt. Mike R. Smith, National Guard Bureau) (Released) - Public Domain
Harris & Ewing, photographer - Public Domain
unknown - Public Domain
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Benjamin, Park, 1809-1864
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unknown photographer -
Wenning, Pieter, 1873-1921
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Bolin, Jane M. (Jane Matilda), 1908-2007
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Salgado, Sebastiăo, 1944-
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Naylor, Gloria.
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US Army Signal Corps - Public Domain
Weible, Walter L. (Walter Leo), 1896-1980
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Anderson, Carl D. (Carl David), 1905-1991
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Public Domain
Drummond, William Henry, 1854-1907
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ISPMB -
Johnston, Annie Bronn
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Membeth - CC0 1.0
Kretzschmar, Hermann, 1848-1924
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Cochran, Thad
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Jorge ga - CC BY-SA 4.0
Castells, Manuel, 1942-....
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Public Domain
Córdova, Jorge L. (Jorge Luis), 1907-1994
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RobertoTenore - CC BY-SA 3.0
Strieber, Whitley
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zeitgenössischer Maler - Public Domain
Rese, Friedrich, 1791-1871
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Lampe, Friedrich Adolph, 1683-1729
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Perry, WIlliam Stevens - Public Domain
Clarkson, Robert H. (Robert Harper), 1826-1884
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Lindsayfox - Public Domain
Charles, Teddy
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Tailok - Public Domain
Nettlau, Max, 1865-1944
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Backer, Jacob Adriaensz., 1608-1651
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Bowden, Bobby
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Besler, Basilius, 1561-1629
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unknown, upload by Parpan05 - Public Domain
Hegi, Franz, 1774-1850
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Smith, Gerard C.
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Firmin Massot - Public Domain
Breadalbane, John Campbell, Marquis of, 1796-1862
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E. White, N.Y. - Public Domain
Bowers, Robert Hood, 1877-1941
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(Photo by Air Force Master Sgt. Mike R. Smith, National Guard Bureau) (Released) - Public Domain
Wilson, Michael H. (Michael Holcombe), 1937-
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Harris & Ewing, photographer - Public Domain
Merriam, Clinton Hart, 1855-1942
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unknown - Public Domain
Barnard, Frederick, 1846-1896
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Forbes-Robertson, Johnston, Sir, 1853-1937