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unknown - Public Domain
Naiaomdredom - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
Fülesbagoly - Public Domain
Pieter Schenk (I) - Public Domain
Mathew Brady - Public Domain
Public Domain
unknown photographer - Public Domain
Knoxvillearts - CC BY-SA 4.0
United States Senate Historical Office - Public Domain
Slowking4 -
LPLT - Public Domain
Alex Handy - CC BY-SA 2.0
JH-Foundation - CC BY-SA 3.0
printed by Sebastián de Cormellas. Engraver unknown. - Public Domain
Unbekannter Grafiker der Epoche. - Public Domain
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unknown - Public Domain
Medem, Vladimir, 1879-1923
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Keenan, Frank, 1858-1929
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Naiaomdredom - CC BY-SA 3.0
Zeng, Fanzhi, 1964-
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Smith, Southwood, 1788-1861
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Mathew Brady Levin Corot Handy - Public Domain
Farnsworth, J. F. (John Franklin), 1820-1897
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Fülesbagoly - Public Domain
Filipecz, Johann, 1431-1509
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Pieter Schenk (I) - Public Domain
Mayer, Johann Friedrich, 1650-1712
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Manning, Mr. (Vannoy Hartrog), 1839-1892
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Mathew Brady - Public Domain
Faulkner, Charles James, 1806-1884
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Holladay, Ben, 1819-1887
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Public Domain
Bronn, H.G. (Heinrich Georg), 1800-1862
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Kamagurka
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Galento, Tony, 1910-1979
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unknown photographer - Public Domain
Eisenstein, Elizabeth L.
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Knoxvillearts - CC BY-SA 4.0
Neuhaus, Max
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United States Senate Historical Office - Public Domain
Dana, Judah, 1772-1845
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Slowking4 -
Rodríguez, Richard 1944-
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LPLT - Public Domain
Rosmini, Antonio, 1797-1855.
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unknown - Public Domain
Schmidt-Rottluff, Karl, 1884-1976
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unknown - Public Domain
Childs, John Lewis, 1856-1921
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Alex Handy - CC BY-SA 2.0
Engelbart, D. C., 1925-2013
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unknown - Public Domain
Sievers, Eduard, 1850-1932
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Hodges, William, 1744-1797
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JH-Foundation - CC BY-SA 3.0
Hübner, Julius, 1806-1882
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Sade
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printed by Sebastián de Cormellas. Engraver unknown. - Public Domain
Rojas Villandrando, Agustín de (1572-1612?).
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Bolling, Leslie Garland, 1898-
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Unbekannter Grafiker der Epoche. - Public Domain
Chelius, J. M. (Joseph Maximilian), 1794-1876
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Ömer Lûtfi Pasa 1806-1871
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unknown - Public Domain
Cvejić, Biserka