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Imp. Charles Lévy (French, 19th/20th century)
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Anonymous
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Fred Dana Marsh (American, 1872 – 1961)
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Edward Penfield (American, 1866 - 1925)
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George Wharton Edwards (American, 1859-1950)
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Anonymous
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National Institutes of Health (American, 1887-)
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G.H. Buek & Co. (American, 1850 – 1927)
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Anonymous
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Léon Choubrac (French, 1847 – 1885)
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Anonymous
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Anonymous
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Bruno Chavannaz (French, 1892–1969)
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Frank Newbould (English, 1887 – 1951)
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Arlington Gregg (American, 1909 - 1964)
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U.S. Information Agency (American, 1953-1999)
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Strobridge & Co. Lith. (American, 1847 -)
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Laboratoires Robert & Carrière (French, 20th Century)
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Jac Jongert (Dutch, 1883-1942)
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Anonymous
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Charles E Turner (English, 1883-1965)
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Plinio Colombi (Swiss, 1873 - 1951)
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Joseph Binder (Austrian, 1898-1972)