Lewis E. Walker

Abraham Lincoln

Interior View of the North Hall, United States Patent Office Model Room After the Fire of September 24th, 1877

View of the Roof of the U.S. Patent Office Building, Corner of 7th and G Streets, After the Fire of September 24th, 1877

Exterior View of the U.S. Patent Office Building, Corner of 9th and G Streets, After the Fire of September 24th, 1877

Interior View of the West Hall, United States Patent Office Model Room, After the Fire of September 24th, 1877