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Public Domain
Lebrsm - CC BY-SA 4.0
Ed Berger - CC BY 2.0
CC BY-SA 3.0
Maud Cuney-Hare, 1874-1936 - Public Domain
unknown - Public Domain
US Government Printing Office - Public Domain
incógnito - Public Domain
Harris & Ewing - Public Domain
Anselm van Hulle, 1601-1674 - Public Domain
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Public Domain
Legge, James, 1815-1897
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Lebrsm - CC BY-SA 4.0
Griffiths, John W. (John Willis), 1809-1882
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Ed Berger - CC BY 2.0
Payne, Cecil
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Darman, Richard Gordon, 1943-2008
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CC BY-SA 3.0
Andrews, Lyman, 1938-
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Walorski, Jackie, 1963-
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Maud Cuney-Hare, 1874-1936 - Public Domain
Burleigh, H. T. (Harry Thacker), 1866-1949
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Ernst August, Duke of Brunswick-Lüneburg, 1845-1923
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unknown - Public Domain
Grotberg, John E., 1925-1986
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US Government Printing Office - Public Domain
Shannon, James, 1952-
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McRae, John J., 1815-1868
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Terry, Fred, 1863-1933
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Ehret, Georg Dionysius, 1708-1770
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Belcher, Supply, 1751-1836
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Heath, Nicholas, 1501?-1578
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unknown - Public Domain
Swain, Joseph, 1857-1927
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incógnito - Public Domain
Jiménez de Rada, Rodrigo approximately 1170-1247
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unknown - Public Domain
Morgan, Arthur, Sir, 1856-1916
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Hearst, William Randolph, 1908-1993
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Harris & Ewing - Public Domain
Dempsey, Stephen Wallace, 1862-1949
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White, Josh
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unknown - Public Domain
Moffat, John, 1841-1918
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Anselm van Hulle, 1601-1674 - Public Domain
Guericke, Otto von 1602-1686
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Marshall, George C. (George Catlett), 1880-1959
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Lisi, Virna
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Crutchfield, James, 1912-2001
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Public Domain
Brackman, Robert, 1898-
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Stewart, James Haldane, 1776-1854
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Barraud, Francis, 1856-1924
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Laudenbach, Philippe, 1936-...