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G. Jerrard - Public Domain
Public Domain
Government Employee - Public Domain
unknown - Public Domain
No conegut - Public Domain
Unknown (but made for John Daye) - Public Domain
U.S. Environmental Protection Agency (EPA) - Public Domain
Bain - Public Domain
Henry Chase - Public Domain
Arnaldo Colombaroli - Public Domain
Wales 2010 - CC BY-SA 4.0
Louise Blangini (lithographer) - Public Domain
Peter Voeth -
Louis Held (1857-1927) - Public Domain
https://www.flickr.com/photos/geoliv/4146929965/ - CC BY-SA 2.0
Christopher Bromige - CC BY-SA 3.0
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Warren, John Byrne Leicester, baron de Tabley, 1835-1895
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G. Jerrard - Public Domain
Maudsley, Henry, 1835-1918
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Public Domain
Cotton, Evan, 1868-1939
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Government Employee - Public Domain
McDaniel, Boyce D. (Boyce Dawkins), 1917-
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Strasser, Todd
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unknown - Public Domain
Robinson, Benjamin Lincoln, 1864-1935
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Price, Sterling, 1809-1867
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No conegut - Public Domain
Niven, W. D. (William Davidson), Sir, 1842-1917
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Hyde, Douglas, 1860-1949
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unknown - Public Domain
Mead, Richard, 1673-1754
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Unknown (but made for John Daye) - Public Domain
Day, John, 1522-1584
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O'Neal, Frederick, 1905-1992
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U.S. Environmental Protection Agency (EPA) - Public Domain
Reilly, William K. (William Kane), 1940-
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Ketter, Clay, 1961-....
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Bain - Public Domain
Willcox, William R. (William Russell), 1863-1940
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Henry Chase - Public Domain
Dana, John Winchester, 1808-1867
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Jordan, Mary, 1960-
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unknown - Public Domain
Uslar Pietri, Arturo, 1906-2001
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Arnaldo Colombaroli - Public Domain
Crespin, RĂ©gine
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Wales 2010 - CC BY-SA 4.0
Burn, Michael
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Corbould, Edward Henry, 1815-1905
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Louise Blangini (lithographer) - Public Domain
Blangini
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Scheidel, Walter, 1966-....
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Bromby, Charles Henry, 1814-1907
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Peter Voeth -
Carriè€re, Mathieu
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Nuttall, L. John (Leonard John), 1834-1905
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Louis Held (1857-1927) - Public Domain
Schaffner, Jakob, 1875-1944
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https://www.flickr.com/photos/geoliv/4146929965/ - CC BY-SA 2.0
Chan Khong, Sister
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Fox, Dixon Ryan, 1887-1945
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Christopher Bromige - CC BY-SA 3.0
Bromige, David