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:et:Kk -
HappyTrails - CC BY-SA 4.0
unknown - Public Domain
Harris & Ewing, photographer. - Public Domain
Schlesinger Library, RIAS, Harvard University -
Josephnavarro3000 - CC BY-SA 3.0
user at project -
Jatpennclub - CC BY-SA 4.0
Public Domain
Paul Ruet - CC BY-SA 3.0
Chkmm - CC BY-SA 3.0
Dave Bruel - CC BY-SA 4.0
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Kubelka, Peter.
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:et:Kk -
Abram, David, 1957-.....
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HappyTrails - CC BY-SA 4.0
Mortifee, Ann, 1947-
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Astruc, Zacharie, 1833-1907
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Leo XI, Pope, 1535-1605
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Käutner, Helmut, 1908-1980
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unknown - Public Domain
Bronson, Greene C. (Greene Carrier), 1789-1863
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Harris & Ewing, photographer. - Public Domain
Johnson, Hiram, 1866-1945
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Schlesinger Library, RIAS, Harvard University -
Horner, Matina
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Josephnavarro3000 - CC BY-SA 3.0
Palmer, Sharon
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unknown - Public Domain
O'Brien, James Bronterre, 1805-1864
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user at project -
Lindall, Terrance R.
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Jatpennclub - CC BY-SA 4.0
Bloch, Peter 1921-2008
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unknown - Public Domain
Eaton, Horace, 1804-1855
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Abercromby, James, 1706-1781
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unknown - Public Domain
Béraud, Henri, 1885-1958
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Boucicaut, approximately 1366-1421
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Public Domain
Hinds, James, 1833-1868
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Philippe, Charles-Louis, 1874-1909
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unknown - Public Domain
Broadhead, James O. (James Overton), 1819-1898
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Paul Ruet - CC BY-SA 3.0
Leonhardt, Gustav, 1928-2012
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Guggenheim, Davis
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Preobrajenska, Olga, 1870-1962
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Gilbreth, Lillian Moller, 1878-1972
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unknown - Public Domain
Coll y Toste, Cayetano, 1850-1930
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Chkmm - CC BY-SA 3.0
Senju, Hiroshi, 1958-
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Davis, Jefferson, 1808-1889
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Lindelöf, Ernst Leonard, 1870-
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Dave Bruel - CC BY-SA 4.0
Quinze, Arne, 1971-....
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Goodman, Arnold Goodman, Baron, 1913-