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François Alquier - CC BY-SA 3.0
E.S. Dunshee, photographer, 1330 Chestnut Street, Philadelphia, Pennsylvania, USA - Public Domain
Nikolas Coukouma - CC BY-SA 2.5
unknown - Public Domain
Dick Lyon - Public Domain
not stated - Public Domain
Maurice Seymour (New York) - Public Domain
myself - CC BY-SA 3.0
Pat Padua - CC BY 2.0
unknown author -
Terry Ballard - CC BY 2.0
US Government Printing Office - Public Domain
original uploader - Public Domain
JustoMoscoso - CC BY-SA 3.0
original uploader - CC BY-SA 2.5
Theredmonkey - CC BY-SA 3.0
Msanchog - CC BY 3.0
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François Alquier - CC BY-SA 3.0
Berger, Michel, 1947-1992
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Sinn, Hans-Werner
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E.S. Dunshee, photographer, 1330 Chestnut Street, Philadelphia, Pennsylvania, USA - Public Domain
Peary, Josephine Diebitsch, 1863-1955
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Nikolas Coukouma - CC BY-SA 2.5
Butler, Octávia E.
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unknown - Public Domain
Petrie, W.M. Flinders (William Matthew Flinders), 1853-1942
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Keane, R. V. (Richard Valentine), 1882-1946
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Dick Lyon - Public Domain
Mead, Carver.
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Pappenheim, Bertha, 1859-1936
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Mahon, Hugh, 1858-1931
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unknown - Public Domain
McCalla, Bowman Hendry, 1844-1910
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unknown - Public Domain
Ponsonby-Fane, Spencer Cecil Brabazon, 1824-1915
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not stated - Public Domain
MacManus, Seumas, 1869-1960
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Maurice Seymour (New York) - Public Domain
Ballard, Kaye
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Dickson, Oscar
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myself - CC BY-SA 3.0
Hacke, Alexander
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Pat Padua - CC BY 2.0
David, Hal, 1921-2012
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unknown - Public Domain
McDaniel, Henry D. (Henry Dickerson), 1836-1926
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unknown author -
Emmet, Grenville T. (Grenville Temple), 1877-1937
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Maffei, Giovanni Pietro, 1536?-1603
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Terry Ballard - CC BY 2.0
Lapham, Lewis
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Hulme, T.E. (Thomas Ernest), 1883-1917
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US Government Printing Office - Public Domain
Dorn, Francis E. (Francis Edwin), 1911-1987
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Bosanquet, Day Hort, Sir, 1843-1923
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original uploader - Public Domain
Moffett, Thomas, 1553-1604
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JustoMoscoso - CC BY-SA 3.0
Moscoso, Victor
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Best, S. Payne (Sigismund Payne)
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original uploader - CC BY-SA 2.5
Pines, Alexander, 1945-....
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unknown - Public Domain
Bowman, Thomas, 1817-1914
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Theredmonkey - CC BY-SA 3.0
Jacobson, Gary C.
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Msanchog - CC BY 3.0
Didot, Firmin, 1764-1836