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unknown - Public Domain
Allan warren - CC BY-SA 3.0
Public Domain
Bull-Doser - Public Domain
C. S. Fly - Public Domain
Alice S. Kandell - Public Domain
unidentified photographer, published in Musica (1912) - Public Domain
Shigeru Tamura -
Harry Furniss - Public Domain
Anonymous - Public Domain
Florida Supercon - CC BY 2.0
PF - Public Domain
user at project - Public Domain
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Paul V, Pope, 1552-1621
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Simpson, Helen, 1897-1940
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unknown - Public Domain
Hubbard, Thomas H. (Thomas Hamlin), 1838-1915
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Allan warren - CC BY-SA 3.0
Morley, Robert.
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unknown - Public Domain
Tremellius, Immanuel, 1510-1580
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Vogt, Karl Christoph, 1817-1895
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Public Domain
Maurokordatos, Alexandros, 1791-1865
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Bull-Doser - Public Domain
Haimovitz, Matt, 1970-....
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Groener, Wilhelm, 1867-1939
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C. S. Fly - Public Domain
Fly, C. S. (Camillus Sidney), 1849-1901
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Alice S. Kandell - Public Domain
Palden Thondup Namgyal, Chogyal of Sikkim, 1923-
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unidentified photographer, published in Musica (1912) - Public Domain
Tournier, Marcel, 1879-1951
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Kilvert, Robert Francis, 1840-1879
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unknown - Public Domain
Hoffman, Ogden, 1793-1856
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Shigeru Tamura -
Kihara, Hitoshi.
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Gentili, Scipione, 1563-1616
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Fabbroni, Giovanni Valentino Mattia, 1752-1822
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Harry Furniss - Public Domain
Harcourt, Lewis Harcourt, Viscount, 1863-1922
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Toledo, Francisco de 1515-1582
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Paige, Mabeth Hurd, 1870-1961
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Anonymous - Public Domain
Duchesne, Philippine, Saint, 1769-1852
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Chain, Ernst Boris, 1906-1979
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Munk, Walter H. (Walter Heinrich), 1917-
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Florida Supercon - CC BY 2.0
Kenny, Tom (Thomas J.)
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Seeliger, Hugo von 1849-1924
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Guardini, Romano, 1885-1968
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unknown - Public Domain
Brooke, Francis Taliaferro, 1763-1851
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PF - Public Domain
Bonaparte, Lucien Louis Joseph Napoleon (cardinal)
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user at project - Public Domain
Nosè, Alberto 1979-
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Menken, Adah Isaacs, 1835-1868