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Henry Chase - Public Domain
self-scanned; photographer unknown - Public Domain
unknown - Public Domain
"The Post Register" (Idaho Falls, ID). - Public Domain
KimonBerlin - CC BY-SA 2.0
Thomas M. Disch South Street Seaport 2008-06-03 - CC BY 2.0
ETH Zürich - CC BY-SA 3.0
Sumori - CC BY-SA 3.0
Public Domain
John K. Hillers - Public Domain
Verhoeff, Bert / Anefo -
The Philoctetes Center - CC BY 1.0
Bain - Public Domain
Pash Brothers - Public Domain
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Singer, Bryan, 1965-....
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Tallis, Thomas, approximately 1505-1585
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Schanker, Louis, 1903-1981
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Henry Chase - Public Domain
Robie, Frederick, 1822-1912
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self-scanned; photographer unknown - Public Domain
Grenet, Eliseo, 1893-1950
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unknown - Public Domain
Smith, Erminnie A., 1836-1886
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unknown - Public Domain
Moreno, Pedro, 1775-1817
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Dickson, Oscar
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"The Post Register" (Idaho Falls, ID). - Public Domain
Ross, Charles Benjamin, 1876-1946
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Mann, Monika
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KimonBerlin - CC BY-SA 2.0
Bush, Sam, 1952-
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Hotteterre, Jacques, 1674-1763
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Thomas M. Disch South Street Seaport 2008-06-03 - CC BY 2.0
Disch, Thomas M.
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unknown - Public Domain
Byrom, John, 1692-1763
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Linné, Carl von, 1741-1783
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Shelton, Henry H.
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ETH Zürich - CC BY-SA 3.0
Prelog, V. (Vladimir), 1906-1998
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unknown - Public Domain
Lucas, F. L. (Frank Laurence), 1894-1967
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McFadden, Louis T. (Louis Thomas), 1876-1936
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unknown - Public Domain
Morritt, Charles, 1861-1936
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Sumori - CC BY-SA 3.0
K-Doe, Ernie
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Zuchardt, Karl, 1887-1968
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Public Domain
Faning, Eaton, 1850-1927
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John K. Hillers - Public Domain
Red Cloud, 1822-1909
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Verhoeff, Bert / Anefo -
Breuker, Willem, 1944-2010
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The Philoctetes Center - CC BY 1.0
Shields, David, 1956-.....
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Welby, Reginald Earle Welby, Baron, 1832-1915
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Bain - Public Domain
Earle, Ralph, 1874-1939
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Pash Brothers - Public Domain
Rhind, J. Massey (John Massey), 1858-
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Patchett, Ann