Lewis E. Walker, 1822 - 1880
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.
Lewis E. Walker, 1822 - 1880. Exterior View of the U.S. Patent Office Building, Corner of 9th and G Streets, After the Fire of September 24th, 1877, 1877. Smithsonian Institution.