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Unknown - Public Domain
roomtemperature.org / Fergus Kelly - CC BY-SA 2.0
The Institute for Fiduciary Standard - CC BY-SA 4.0
Josephson, Marba C. and w - Public Domain
Ezra Ames - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Freeman Thorp - Public Domain
US Government Printing Office - Public Domain
unbekannt; upload by Sidonius - Public Domain
unknown - Public Domain
CBS Television - Public Domain
Wuselig - CC BY-SA 3.0
Philippe Pelletier - CC BY-SA 4.0
Public Domain
user at project - Public Domain
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Unknown - Public Domain
Lyman, Theodore, 1833-1897
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roomtemperature.org / Fergus Kelly - CC BY-SA 2.0
Hayward, Charles
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The Institute for Fiduciary Standard - CC BY-SA 4.0
Bogle, John C.
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Josephson, Marba C. and w - Public Domain
Moyle, Henry Dinwoodey, 1889-1963
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Barber, Ronde, 1975-
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Hatchett, Joseph W., 1932-
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Grenville, George, 1712-1770
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Benedict, Saint, Abbot of Monte Cassino
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Nuyen, France, 1939-
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Ezra Ames - Public Domain
Lansing, Gerrit Yates, 1783-1862
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Mathew Brady Levin Corot Handy - Public Domain
Waldron, Henry, 1819-
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Freeman Thorp - Public Domain
Henderson, David Bremner, 1840-1906
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Smith, Jedediah Strong, 1799-1831
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US Government Printing Office - Public Domain
Harvey, James, 1922-
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Smith, Carrie, 1925-2012
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unbekannt; upload by Sidonius - Public Domain
Greulich, Hermann, 1842-1925
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unknown - Public Domain
Jennings, William Sherman, 1863-1920
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unknown - Public Domain
Scott, John M., 1824-1898
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Dragomoshchenko, A. (Arkadiĭ)
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Reisz, Karel
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Henle, Jacob, 1809-1885
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Blackwell, David, 1919-2010
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CBS Television - Public Domain
Crawford, Broderick, 1911-1986
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Wuselig - CC BY-SA 3.0
Winkelmann, Adolf, 1946-....
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Rodrigues Alves, Francisco de Paula, 1848-1919
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Philippe Pelletier - CC BY-SA 4.0
Afonso, Yves, 1944-....
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Delius, Frederick
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Desrochers, Étienne-Jehandier 1668-1741
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Public Domain
Parsons, M. M.
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user at project - Public Domain
Sarraute, Nathalie