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U.S. Coast Guard - Public Domain
unknown - Public Domain
US Army Signal Corps - Public Domain
CBS Network - Public Domain
Mal Vickers - CC BY-SA 4.0
Esperanto-klubo Písek - CC BY-SA 3.0
Irving Resnikoff - Public Domain
Ronald L Mallett, Research Professor of Physics, - CC BY-SA 4.0
Street & Smith New York - Public Domain
Oleg Alexandrov -
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Gérald Garitan - CC BY-SA 4.0
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Yamamoto, Yohji, 1943-....
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U.S. Coast Guard - Public Domain
Gracey, James Steele, 1927-
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unknown - Public Domain
Loke, Wan Tho, 1915-
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unknown - Public Domain
Fortuny, Mariano, 1871-1949
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US Army Signal Corps - Public Domain
Weible, Walter L. (Walter Leo), 1896-1980
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CBS Network - Public Domain
Kaye, Lila
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Cardano, Girolamo, 1501-1576
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unknown - Public Domain
Hutchinson, A. S. M. (Arthur Stuart-Menteth), 1880-1971
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Moores, Merrill, 1856-1929
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Mal Vickers - CC BY-SA 4.0
Stanley, Fiona J.
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Esperanto-klubo Písek - CC BY-SA 3.0
Srnka, Jiří.
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Beck, Adam, 1857-1925
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unknown - Public Domain
Cunningham, W. (William), 1849-1919
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unknown - Public Domain
Carter, Thomas Henry, 1854-1911
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Irving Resnikoff - Public Domain
Stahr, Elvis J. (Elvis Jacob), 1916-1998
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Ronald L Mallett, Research Professor of Physics, - CC BY-SA 4.0
Mallett, Ronald L.
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Iʻtiṣāmī, Parvīn 1907-1941
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Street & Smith New York - Public Domain
Lee, Dixie, 1911-1952
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Shaw, James, Sir, 1764-1843
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Martin, Artemas, 1835-1918
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Vogel, Paula.
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Lick, James, 1796-1876
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Costa, Gal
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Batlle Beres, Luis, 1897-1964
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Cotterill, George F. (George Fletcher), 1865-1958
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Fraser, James Baillie, 1783-1856
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Moss, Carrie-Anne, 1970-
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Piatt, Sarah M. B. (Sarah Morgan Bryan), 1836-1919
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Du Bellay, Jean, 1498?-1560
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Gérald Garitan - CC BY-SA 4.0
Bouix, Evelyne, 1956-....