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unknown engraver - Public Domain
Bob Sindel - CC BY 3.0
Tomjc.55 - CC BY-SA 4.0
Public Domain
Zeroth - CC BY-SA 3.0
Colourman - CC BY-SA 3.0
unknown - Public Domain
MathiasTravis - CC BY-SA 4.0
Monica Boirar - CC BY-SA 3.0
A. T. Andreas (Chicago), publisher. - Public Domain
anonymous -
Frederick Hollyer - Public Domain
Fodor - Public Domain
David Shankbone - CC BY 3.0
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O'Connor, Garry.
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unknown engraver - Public Domain
Barbon, Praisegod, 1596?-1679
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Bob Sindel - CC BY 3.0
Chernoff, Maxine, 1952-
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Mackeben, Theo, 1897-1953
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Tomjc.55 - CC BY-SA 4.0
Barragán, Luis, 1902-1988
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Ka-tzetnik 135633, 1917-2001
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Public Domain
Mouton, Alfred, 1829-1864
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Massachusetts Institute of Technology
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Zeroth - CC BY-SA 3.0
Campodónico, Juan, 1971-
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Moore, Fred R. (Frederick Randolph), 1857-1943
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Colourman - CC BY-SA 3.0
Bevan, Robert, 1865-1925
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Severus, Lucius Septimius, Emperor of Rome, 146-211
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unknown - Public Domain
Smith, N. R. (Nathan Ryno), 1797-1877
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unknown - Public Domain
Hamlin, William, 1772-1869
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Stapp John P. (John Paul), 1910-1999
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MathiasTravis - CC BY-SA 4.0
Lafontaine, Marie-Jo, 1950-
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Trübner, Wilhelm, 1851-1917
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Monica Boirar - CC BY-SA 3.0
Brauer, Erich, 1929-....
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A. T. Andreas (Chicago), publisher. - Public Domain
Phillips, William A. (William Addison), 1824-1893
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anonymous -
Liesegang, Raphael Ed. (Raphael Eduard), 1869-1947
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Beard, William Holbrook, 1824-1900
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Fersen, Fredrik Axel von, greve, 1719-1794
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White, Sol, 1868-
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Frederick Hollyer - Public Domain
Mackail, J. W. (John William), 1859-1945
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Fodor - Public Domain
Lessing, Theodor, 1872-1933
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unknown - Public Domain
Rebouças, André Pinto, 1838-1898
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Isham II, Sir Thomas
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Woodward, R. B. (Robert Burns), 1917-1979
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David Shankbone - CC BY 3.0
Sorvino, Paul
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unknown - Public Domain
Fullmer, John Solomon, 1807-1883