| 1 |
Robert Edge Pine, a British portrait painter in America, 1784-1788 / by Robert G. Stewart
Washington : Published for the National Portrait Gallery by the Smithsonian Institution Press , 1979
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| 2 |
Henry Benbridge (1743-1812) : American portrait painter / Robert G. Stewart, curator
Washington : Published for the National Portrait Gallery by the Smithsonian Institution Press , 1971
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| 3 |
A nineteenth-century gallery of distinguished Americans / catalogue by Robert G. Stewart
Washington : Smithsonian Institution Press , 1969
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| 4 |
Nucleus for a national collection, National Portrait Gallery, Smithsonian Institution / entries compiled by Robert G. Stewart
Washington, D.C. : Smithsonian Insitution , 1966
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| 5 |
Recent acquisitions : National Portrait Gallery, Smithsonian Institution / entries compiled by Robert G. Stewart
Washington, D.C. : National Portrait Gallery, Smithsonian Institution , [1966]
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