Bird's-eye views of 3 floorplans. At upper left: 150 Smithsonian, 1846-1996. Includes notes, index to points of interest, and ill. Text and ill. on verso. Available also through the Library of Congress Web site as a raster image. DCP
National Museum Of American Art (U.S.)
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/97685559/">https://www.loc.gov/item/97685559/</a>