A Project of the Center for Advanced Study in the Visual Arts, National Gallery of Art
History of Early American Landscape Design

Discuss M. Schmitz (artist), Thomas S. Sinclair (lithographer), John B. Colahan (surveyor), “Map of Washington Square, Philadelphia,” 1843

[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
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A Project of the Center for Advanced Study in the Visual Arts

National Gallery of Art, Washington