File talk:2034.jpg
[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 ]
Thomas Kelah Wharton, "View of David Hosack Estate, Hyde Park, New York, with a Sundial" (from Hosack Album), ca. 1832, graphite on white wove Bristol board, 3 x 3 9/16 in. (7.6 x 9 cm), Metropolitan Museum of Art, Purchase, Mrs. Louis Marx Gift, 1994.187.14
http://metmuseum.org/collection/the-collection-online/search/14847?pos=20&rpp=30&pg=1&ft=hyde%2bpark