R. M. Chalmers, n.d.
License, verbatimCC0
The Smithsonian Institution: Open Access image dedicated to the public domain under Creative Commons Zero (CC0); usage.access=CC0 on the media record itself.
R. M. Chalmers, n.d.. Proposed-Perspective Elevation for an Art Exposition Building, and Tower 600 feet in height, representing New England in six divisions, ca. 1876. Smithsonian Institution.